Folding Reality - Time Travel with Perilous Consequences

Experiencing time travel is just a paper-fold away for Mike the insurance salesman. The problem is, he never knows which "where-when" reality he'll experience. Being crucified, or being gassed at Auschwitz, or marooned in space in a Russian capsule. The bigger problem is, he cannot control when he gets back to normal reality, if there is such thing as normal reality.