Legendary literary game-maker Garrison Griswold is back in action―this time with “Unlock the Rock.” For his latest game, Griswold has partnered with the famous—and famously reclusive—mystery writer Errol Roy to plan an epic escape room challenge on Alcatraz Island.
2020-2021 Lamplighter Award
Reading Level: 5.8
Published by Henry Holt and Co
Copyright May 1, 2018
ISBN# 978-1627799638 (HB)
©2023 Copyright Triple Crown Awards
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