To say the least, Duncan clearly heard a crisp "crack" somewhere on the sailor's body—it was obvious that some joint had dislocated when the mummy of a sailor shivered.
Then the uncanny wails of subject 077 exploded on the aft deck, "Captain! Captain, don't scare me! I'm loyal, diligent, sincere, honest! If I did something wrong, just say so and I'll change, don't frighten me with this... or you could just stuff me into the cannon and shoot me out..."
The raucous voice of the mummified sailor echoed across the aft deck, clamoring as he desperately clawed his way up the edges of the railing next to the steering platform, looking like he was about to jump off any second—and indeed he flipped over the railing, but just as he was about to leap out, a rope shot out like an arrow, binding his ankles and dragging him back onto the platform, coiling around him several times in the process.