Scarecrow Returns by Matthew Reilly
In Scarecrow Returns, Captain Shane Schofield (call sign "Scarecrow") resurfaces after having gone through an incredibly emotional ordeal at the end of Scarecrow. In this fourth book featuring him, Scarecrow and his team are called upon to infiltrate a former Soviet base located in the Arctic where a terrorist group, calling themselves the Army of Thieves, is preparing to destroy half the planet with a cold-war-era device they have in their control. True to Reilly's modus operandi, Scarecrow only has a few hours to accomplish what needs to be done to save the world.
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