Geronimo's sister Thea Stilton narrates this tale packed with action, mystery, and friendship! When the Thea Sisters' friend Ashvin is in trouble, they rush to his aid… in India!. Ashvin has been bringing the monkeys that live in the big city back to their natural jungle environment. But the monkeys have suddenly started stealing jewels!. Someone must be behind this terrible theft. Can the Thea Sisters solve the mystery?. The books are written in a fun way that keeps a child's attention, but the writing style and vocabulary are challenging enough to keep moving a child's learning forward. The perfect combination of fun and challenge to children. Thea Stilton adalah koresponden khusus untuk The Rodent's Gazette, surat kabar paling terkenal di Pulau Tikus. Lulusan Akademi Mouseford, Ms. Stilton suka bepergian dan berpetualang. Ketika teman Thea Sisters, Ashvin, berada dalam kesulitan, mereka bergegas membantunya… di India!. Ashvin telah bekerja untuk mengevakuasi semua monyet yang tinggal di kota besar dan membawa mereka kembali ke hutan yang merupakan lingkungan alami mereka yang sebenarnya. Tapi para monyet-monyet itu tiba-tiba mulai mencuri permata!. Ketika gerombolan monyet itu berhasil mencuri permata zamrud milik Pangeran India, Ashvin merasa hancur. Seseorang pasti berada di balik permainan monyet yang mengerikan ini. Bisakah Thea Sisters membantu memecahkan misteri itu?