When you return from the cutscene you are thrust into a fight with Dallis, the Hammer. If you go down you'll be in a fight with some Gheists but there's also the second teleporter pyramid down here as well. One last thing to do in this room is on the north side - beside the massive desk where the tome was found - is a hatch.

If you stand next to the Bed on the west side, it will move a nearby bookshelf and a hidden button which you can press to open the door where you can loot some very expensive items. Make sure to grab the teleporter pyramid off the table, and then grab the Dusty Tome off the desk just beside Tarquin. Inside you'll start a conversation about Tarquin and you can learn a few things as well as buy some nifty gear from him. Head up the south stairs now, into the room and interact with the Port-Side Stateroom Door and state the password to be let through the door. One thing to note here is that there is a mirror that can be used to respec your character for all things BUT spells - you will need 5 thievery in the next chapter whether through gear or base skills so this is a good opportunity to sort that. Head East across the deck to the other side. Talk to Constance to have her open the door for you and you will have to either persuade the Magister to let you examine Alexander or you'll have to kill her, but once you do examine Alexander you'll find a gem on him that you take for your own. On the West side you'll find a Magister and Alexander locked up.

Then head to the East side of the boat to find out that the boat won't move, and that Alexander survived the previous fight! If you come across one of your companions, talk to them to recruit them once again - otherwise you want to head down a deck, and then through another hatch to the lowest deck. When you read you will learn the password is Fortitude. Your party will leave you for now, so run west around looting all of the dead bodies (if you've sold items to Keban in Amadia's Sanctuary you will find them to resell!) and one of the bodies should have a journal on it.

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