I'd personally let Hassan/Hazan(Spelling?) be the tower by himself and make Berg death. Berg has been stalked by death from his arrival; almost everyone he has any lengthy contact with dies. He has been reborn into a new life twice (his freedom from slavery, and now his journey with the Tower) and so on. More than that, he gained an inherent power to renew himself with the life energy of others. His journey with the tower has only just begun, and while he has been plagued with catastrophe, most of the destruction and ruin around him has been very close and personal death.
Interesting topic discussion all round, though.