This lot of 3 paperback books from the "Star Trek" series, "The Lost Era," includes titles such as "One Constant Star," "The Sundered," and "Catalyst Of Shadows." Written by Keith R. A. Decandido, these novels fall under the genres of Science Fiction/Action & Adventure, Science Fiction/Space Opera, and Science Fiction/General. Published by Pocket Books/Star Trek in 2003, these first edition books are intended for a wide audience, including young adults and adults, and are set in the 2000s era. With a total of 384 pages across the three books, this vintage collection is a must-have for fans of the Star Trek universe.