The Green Futures of Tycho by William Sleator The Green Futures of Tycho by William Sleator (E. P. Dutton, April 1981).
The Boy Who Reversed Himself by William Sleator The Boy Who Reversed Himself by William Sleator (E. P. Dutton, October 1986).
Strange Attractors by William Sleator Strange Attractors by William Sleator (E. P. Dutton, January 1990).