A Fold in the Tent of the Sky by Michael Hale

Struggling actor Peter Abbott is about to land the biggest role of his life. His audition for Calliope Associates—a clandestine private investigation firm made up of men and women with highly developed psychic abilities—requires only proof of Peter's psychic skills, no dramatic monologue.

Business is booming until members of the group begin disappearing at the hands of fellow psychic Simon Haywood. His genius is matched only by Peter's, but Simon alone discovers a unique way to use his extrasensory skills to travel back in time, committing crimes without any trace. Simon's mind grows warped and paranoid as the universe strains against his tinkering. Terrified that his extracurricular voyages will be curtailed, he plans to "erase" his colleagues. But Simon's methods are not exactly cold-blooded; instead he goes back to the moment of his victims' conception and prevents them from being created. Because no one in the present day recalls he or she ever existed, he's not caught . . . until Peter realizes what's happening. Now time is running out as Simon's sociopathic travels are disrupting the universe, folding and twisting the constraints of matter to a near-breaking point and threatening to spin the entire cosmos out of control.

A Fold in the Tent of the Sky takes murder into a new dimension as it races toward its electrifying, time-twisting climax.