Philip Wylie (1902–71) wrote several classic works of speculative fiction, including When Worlds Collide, available in the Bison Frontiers of Imagination series. Janny Wurts is the acclaimed author of many novels, including Peril’s Gate, from the Wars of Light and Shadow series, and To Ride Hell’s Chasm. She is the coauthor, along with Raymond Feist, of the internationally best-selling Empire trilogy.