Percy Jackson meets Indiana Jones in the final installment of the New York Times bestselling epic adventure Seven Wonders!This story begins after King Uhla'ar kidnapped Aly and dragged her back through a rift in time. A giant, merciless behemoth guards the opening, and so Jack McKinley and his friends realize that rescuing Aly will be harder than they thought. Their only hope is to rush to the last of the Ancient Wonders and find the rest of the lost Loculi.