Blood on the Docks
Blood on the Docks
A respected merchant captain is found murdered in his locked cabin aboard the merchant vessel Seahawk, docked in the pirate haven of Tortuga. The party must navigate treacherous port politics, interrogate sailors with conflicting motives, and uncover whether the killer was a jealous rival, a vengeful crew member, or something more sinister lurking in the hold.
Read Aloud
The salt-worn planks of Tortuga's docks creak beneath your boots as you approach the merchant vessel Seahawk, her paint faded to a ghostly white, her rigging tangled with seaweed and torn canvas. The morning sun is already brutal, beating down on the sprawl of fishing nets and coiled rope. A crowd of dockworkers and port officials clusters near the gangway, their voices urgent and fearful. As you climb aboard, the stench hits you—not just the usual brine and bilge, but something darker: copper-rich blood and the vinegary reek of fear-sweat. Below deck, Captain Aldric Voss lies sprawled across his bunk, a cutlass wound beneath his ribs that has already begun to darken and curl at the edges. His cabin door was locked from the inside. Three keys hang from the captain's own belt, but none of them will turn in the lock now.
Description
Captain Aldric Voss, a grizzled merchant of some renown, lies dead in his private quarters. The wound is a single, precise cut—professional work. The cabin is small but richly appointed: a desk with scattered ledgers, a sea chart with several locations circled in red ink, a half-empty bottle of expensive rum, and a locked strongbox beneath the bunk. The cabin door was locked from the inside, and the lock shows no signs of tampering. A porthole stands open, overlooking a 30-foot drop to water. The ship is currently docked, and the crew has been confined to the main deck pending investigation. A harbormaster, Garvin Thorne, has called for outside investigators—the party.
DM Notes
Use this scene to establish the locked-room mystery and gather initial information. Allow players to examine the cabin: DC 12 Investigation to notice the strongbox has been disturbed (forced open, then replaced to look sealed). DC 14 Medicine or Survival checks reveal the wound was made 4-6 hours ago, early morning before the crew rose. The porthole is only 8 inches wide—humanoid passage is impossible. Players may attempt to pick the lock on the strongbox (DC 13 Sleight of Hand) or the cabin door (DC 15), but neither is required to progress. Key tension: How did the killer escape a locked cabin? The answer is the porthole was used to escape, not enter—the killer was inside when the door locked. Provide the ledgers as clues (show unusual payments to "R.K." and "The Serpent").
Read Aloud
The Seahawk's main deck is a theater of suspicion. Ten crew members stand in a loose cluster, their eyes darting between each other and the armed port guards. The tropical sun beats down mercilessly, and the smell of nervous sweat mingles with rope tar and fish guts. Garvin Thorne, the harbormaster—a thin man with a scarred face and the bearing of someone who's seen too much—gestures toward three crew members who seem more nervous than the rest. He tells you these three had access to the captain's cabin key, the strongest motives, and questionable alibis for the early morning hours.
Description
Three suspects are presented to the party for questioning. The harbormaster indicates these are the "most likely" perpetrators, though he admits the entire crew was aboard during the relevant timeframe. The party has the freedom to interrogate any or all crew members, but three are flagged as priority. Each provides conflicting information about who saw whom and when. The main deck is chaotic enough that players must make DC 12 Perception checks to notice small details (bloodstains on a rope, a torn piece of fabric matching someone's shirt). The broader crew watches these interactions, offering murmured comments that hint at undisclosed motives and past tensions.
DM Notes
Roleplay each suspect distinctly. Allow the party to use Insight checks (DC 12-14) to detect lying or reluctance. Provide enough information to implicate each suspect in different ways, creating ambiguity. Players can gather information through: direct questioning (Insight), intimidation (Intimidation, DC 13), or charm (Persuasion, DC 12). Offer multiple conversation threads to follow—crew members mention a rival captain seen near the ship, whisper about the captain's secret dealings, and express fear of retaliation. This scene should take 20-30 minutes of roleplay.
Read Aloud
The hold reeks of mildew, rotting fruit, and something else—something organic and wrong. Your torchlight sweeps across crates of cargo, coils of rope thick as your arm, and barrels stamped with merchant marks from a dozen ports. But near the aft bulkhead, you notice something out of place: drag marks in the damp grime, leading behind a stack of sealed crates. When you investigate, you find it—a hidden alcove carved into the hull itself, and within it, the truth. Chains anchor something that should not be here: scales of a creature, iridescent and cold to the touch, shedding with an unnatural luminescence. A wooden cage, now empty, stands nearby. Clawed handprints are scored deep into the wood. You realize with growing dread that Captain Voss was not running cargo.
Description
The party discovers evidence that Captain Voss was smuggling something—a creature, likely an imprisoned fey or aberration. The hold contains: scales matching a creature from the Monster Manual (suggest a young Pseudodragon or similar Fey captive), remnants of exotic food and alchemical compounds, and hand-drawn notes describing "containment procedures" and payment from mysterious buyers. A ledger entry mentions "R.K.—final payment due upon delivery to the Serpent's Hold." The cage suggests the creature recently escaped or was released. This revelation recontextualizes the murder: Was it a crew member who freed the creature in moral outrage? An escape attempt by the imprisoned being? Or a professional rival using sabotage?
DM Notes
This twist transforms the mystery from a simple whodunit into a moral ambiguity. Let players piece together the timeline: the creature escaped/was freed, the captain discovered it missing, and was killed as a result. The locked-cabin mystery is resolved: the creature climbed through the porthole weeks ago, but the captain kept this secret. The real killer may be defending the creature, covering up the smuggling operation, or the creature itself (if it's sapient). Allow DC 13 Arcana checks to identify the creature's likely type. This scene should send the party back to interrogate suspects with new questions. Not all suspects will know about the smuggling; this adds a new dimension to their answers.
Read Aloud
The truth crashes down like a wave. One of the crew members you've been questioning breaks—tears streaming down their face, fists clenched. They confess: they discovered the captain's smuggling operation weeks ago, a source of shame and moral torment. They freed the creature in an act of mercy, hoping it would flee overboard under cover of darkness. But the captain discovered the escape, and in his rage, promised to hunt them down, to drag them before the law, to destroy their family's reputation. In a moment of desperation and fear, they climbed through the porthole—the same narrow opening the creature had used to vanish weeks before—drove the blade home, and climbed back out as the ship began to stir. It was murder born of panic, not premeditation. But the sea keeps its secrets, and now the harbormaster stares at you, waiting for your judgment.
Description
One of the three prime suspects (the party should determine which based on their investigation) confesses under sufficient pressure, guilt, or evidence presentation. The confession reveals the true motive: opposition to the captain's smuggling operation. The killer is not purely evil—they are a person driven to desperation by moral conflict and fear of ruin. The creature itself (a young Pseudodragon or Fey, determined by the party's Arcana check) remains at large in Tortuga's sewers or jungle, potentially dangerous. The captain's contacts (marked "R.K." and "The Serpent" in his ledgers) remain unknown and active—a hook for future sessions. The harbormaster and the party must decide: turn the killer over to Tortuga's loose "justice" system (likely execution), let them flee, or find a third path.
DM Notes
Provide no "correct" answer to the moral dilemma. The captain was a smuggler and potential abuser of sentient creatures; the killer was driven to murder by desperation, not malice. Let the party's choice determine the tone of the resolution. If they turn in the killer, they may gain favor with the harbormaster but earn the enmity of sympathetic crew members. If they let the killer escape, they keep a secret and may be blackmailed. If they negotiate, they might broker a deal (killer flees; party keeps knowledge of the smuggling ring quiet). Use this resolution to set up the next session: the escaped creature in Tortuga, the mysterious "R.K." and "The Serpent," and whether the party will protect or expose the killer.
Monsters
Tactics
The creature is frightened and defensive, not inherently evil. It attacks only if threatened or cornered. It prefers to flee using its Teleport ability (40 feet) and uses hit-and-run tactics. If the party shows signs of peacefully approaching or casting spells that don't cause harm, the creature may flee rather than fight. If the party is accompanied by Kess or someone the creature recognizes, it will be calmer. The creature can understand simple commands in Draconic or telepathically communicate emotions and intent (not language). If pressed, it will use its poisonous sting attack and attempt to escape through high ground (rigging, rooftops, jungle canopy).
Terrain
Tortuga's docks at dawn (if party investigates early) or tropical jungle clearing (if party pursues later). Low visibility in early morning fog or jungle shadows (Perception DC 13 to spot the creature initially). Terrain features: stacked cargo, hanging rigging, scattered barrels, tropical vegetation. Water nearby offers an escape route.
A bound journal containing the captain's illicit dealings. Entries reveal payments to unknown parties (R.K. and The Serpent), cargo manifests of exotic creatures, and smuggling routes across the Sword Coast. Contains valuable information about rival smuggling operations and wealthy collectors willing to pay for rare, sentient creatures. Worth 50 gp if sold to the right collector, but more valuable as leverage or evidence.
After forcing open the strongbox (which the party may do during investigation), they find 180 gp in mixed coinage, a set of gem-studded cufflinks worth 40 gp, and a signet ring worth 25 gp bearing the mark of an unknown noble house.
Garvin pays the party 150 gp for solving the murder and maintaining order on his docks. He also offers a Letter of Safe Conduct in Tortuga (worth its weight in favors—no questions asked in establishments bearing his seal) and a promise of future work if they maintain discretion about the smuggling operation.
A weathered nautical chart with three locations circled in red: an island marked 'R.K.'s Hold' in the distant south, a coastal cave system labeled 'The Serpent's Keep,' and an archipelago marked simply 'The Buyers' Meeting.' The chart is hand-annotated with notes about tidal currents and safe anchorages. Valuable for understanding Aldric's network and potential future adventures.
Story Hooks
The ledger and chart open a larger conspiracy: R.K. (likely a noble or crime lord) and The Serpent (possibly a cult leader, dragon-kin, or powerful mage) are running a creature-smuggling ring. The party now possesses evidence of their operation and may be hunted, recruited, or blackmailed by these entities. The escaped Pseudodragon remains loose in Tortuga's jungles, a liability if it causes harm or a potential ally if the party can befriend it. Kess Marlowe's fate—whether imprisoned, freed, or protected by the party—will determine her future role: she may become a reliable ally with inside knowledge of smuggling networks, a fugitive who owes the party a debt, or a martyr whose cause attracts idealistic rebels.
Conclusion
Wrap Up
As the sun sets over Tortuga's harbor, the mystery of Captain Aldric Voss's death is resolved—though the truth is far more complex than a simple murder. The killer's confession hangs in the salty air, and the harbormaster awaits the party's judgment. The ledgers and charts tell a story of organized crime, suffering creatures, and the moral compromises of desperate people. Garvin Thorne pays the promised reward, and the party earns a foothold in Tortuga's underworld—a place where secrets are currency and everyone has something to hide. The escaped creature remains at large, and somewhere on the Sword Coast, powerful entities are discovering that their smuggling operation has been compromised. Word of the party's investigation will spread, making them either valuable assets or dangerous liabilities in the eyes of those in power.
Cliffhanger
Three days after the conclusion of your investigation, a cloaked figure arrives at the party's tavern and slides a message across the table: a crude map marking a ship called The Crimson Coil, with the words "We know what you found. We will pay double what Thorne offered, or you will pay with your lives. The Serpent does not forgive." The figure vanishes into Tortuga's crowded streets before anyone can react. The party now faces a choice: ignore the threat (risking retaliation), accept the offer (becoming criminals themselves), or attempt to track down and confront The Serpent's agents.
Next Session Hooks
- The Serpent's agents may attempt to steal the ledgers and chart, leading to a tense negotiation or combat encounter. The party could flee Tortuga, pursue the mysterious R.K. and The Serpent, or attempt to dismantle the smuggling ring from within. The escaped Pseudodragon may approach the party, seeking help or forming a bond if treated kindly. Kess Marlowe could return as an ally, antagonist, or tragic figure depending on the party's mercy. The mysterious locations on the chart—R.K.'s Hold, The Serpent's Keep, and The Buyers' Meeting—become potential adventure sites for the next 3-4 sessions.
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