Maghtew can be found being rallied by his wife Kressa Bonedaughter along with his fellow cultists Hairy Henry and Ironfinger.
On approaching, Kressa casts Myrkul's Gift, which gives her and the other cultists 10 temporary hit points.
Maghtew attacks along with the other followers in the barracks if combat begins through dialogue with Kressa or if attacked.
If left alone, he moves to his room in the north-eastern part of the barracks, greeting the party with "May death claim you soon" and "Your bones be blessed" if spoken to.
His journal found in his room reveals that he is the husband of Kressa Bonedaughter and that they were formerly country surgeons from Nashkel. It details how, after joining the Cult of Myrkul, Kressa became obsessed with her tadpole research as well as with a "pet", which she used for her experiments - and how all of this estranged him from his wife. He attempted to bring her back to her senses by telling Balthazar of her pet, which caused Balthazar to ship it to the Nautiloid, but this only entrenched her desire for a thrall.