宇宙大作戦
Timetrap () is an novel by David Dvorkin, published by Pocket Books in 1988. For the week of June 12, 1988, "Timetrap" was the fifth-best-selling paperback book on "The New York Times" Best Seller list. The novel originally sold for . "Timetrap" is Pocket's 40th numbered novel from the retronymed "Star Trek: The Original Series". Simon &amp; Schuster released an e-book version in September 2000.