Samantha Sutton is hesitant to join her Uncle Jay and his team on another archaeological excavation. But the marshes near Cambridge, England sound harmless after the sinister perils she faced in Peru.

How dangerous could a cursory, winter-time survey be? After all, the excavation is only the first step in clearing the way for a massive roller coaster theme park. But the stakes are raised when Samantha makes a dramatic discovery. The local legends are true - the site really was the fortress of Queen Boudicca, whose valiant rebellion against the Roman Empire almost drove its mighty legions from British shores. The site should be protected, the construction stopped. But eccentric landowner, Cairn Catesby, is not only an English Lord determined to move his development forward, he is also the scheming head of Cambridge University's Archaeology Department, making him Uncle Jay's current boss. When Samantha is entrusted with the protection of an artifact that undeniably links the site to the Warrior Queen, she becomes the focus of Cairn's rage. Filled with exotic atmosphere and an array of sharply drawn characters, this is an Agatha Christie mystery for tweens.