The Strange Case of Dr Jekyll and Mr Hyde is Robert Louis Stevenson's thriller allegory of a medical experiment gone wrong and dual personalities, one the essence of good, the other the essence of evil, fighting for supremacy in one man. Filled with suspense the book has had such an impact in popular culture that the expression "Jekyll and Hyde" has itself become synonymous with extremes of or inconsistent behavior.

"Molly, a seventeen-year-old girl who suffers from dissociative identity disorder, has played host to Mabel, a completely distinct personality, for most her life. When Molly faces a crisis Mabel doesn't know she can handle, Mabel lets Molly in on her secrets"--

"The Perfect Daughter is a thriller that explores the truth or lies behind a teenage girl's multiple personality disorder, from D.J. Palmer, the author of The New Husband. Grace never dreamt she'd visit her teenaged daughter Penny in the locked ward of a decaying state psychiatric hospital, charged with a shocking and brutal murder. There was not much question of her daughter's guilt. Police had her fingerprints on the murder weapon and the victim's...

Stephen Leeds is perfectly sane. It's his hallucinations who are mad ... A genius of unrivaled aptitude, Stephen can learn any new skill, vocation, or art in a matter of hours. However, to contain all of this, his mind creates hallucinatory people--Stephen calls them aspects--to hold and manifest the information. Wherever he goes, he is joined by a team of imaginary experts to give advice, interpretation, and explanation. He uses them to solve problems...