Singularity

From Author Wars - https://authorwars.com/publications/singularity-348672.html

Overview:

Title: Singularity
Author: William Sleator
Year: 1988
ISBN-10: 0356139913
Publisher: Macdonald
Price: £6.99
Pages: 144
Binding: Hardcover
Type: Novel
Title Reference: Singularity
Notes: Unknown