The Case of the Forked Road, the seventh book in John Allison's award-winning Bad Machinery series, finds our young sleuths facing the intricacies of time and space itself. What is their science teacher hiding? Who is the mysterious Calvin, why is he dressed like it's 1960, and why is he obsessed with Communists? And another thing just what is going on with Jack, Sonny, and Linton?
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