So I decided to try something on the ship at the start just to see how it would play out. I more or less just started killing the Magisters. Quietly doing so with those at the back end where you start (or is that the front end of the ship?) and working my way to the other end once I had acquired the pocket knife from the kitchen.
When I assaulted Victar and had the whole ship of Sorcerers other than the witch with the white hair joining in, the combat just unfolded like I'd of thought. However, during the conflict the encounter stopped before all enemy combatants (participating Magisters) were downed. I found it curious but went over to the door to see about finishing up with Payde and the Magister that patrolled on that end only to find Payde missing. No corpse either as if he'd been killed. Just poof. And by that point, I was locked out of the back end of the ship and the only exit with no means to get through unless I found a way through the door. No lock picks and the door has over 500 health so yeah.