When geology-mad Sam goes to stay with her American cousin, Trey, neither of them have any idea what adventures they're about to unleash. They bring together two pieces of The Heart of Light and -whoosh! - they're thrown back into Ancient Greece, where angry harpies and satyrs live.
—from publicity material

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  1. Medusa’s Curse, as by A. J. Hunter (Little, Brown Books for Young Readers, February 2016).