Passage

Dr. Joanna Lander, a psychologist separating the truth from the expected in NDEs, is talked into working with Dr. Richard Wright (pun intended), a neurologist testing his theory that NDEs are a survival mechanism by simulating them with psychoactive drugs. When navigating the maze of the hospital in which the cafeteria is never open, dodging Mr. Mandrake who writes popular books on NDEs and fabricates most of his accounts and finding uncorrupted participants for their experiments becomes too difficult, Joanna herself goes under. What she finds on the Other Side almost drives her and Richard apart, while solving the mystery of what it means almost drives her mad. Joanna holds nothing back as she searches her mind and her experience; readers will be able to puzzle out the answers just as she does.
Nominated for Nebula Award for Best Novel in 2001, Hugo, Campbell, and Clark awards in 2002.