About the Book: In this fun and thrilling middle‑grade time‑travel adventure, 12‑year‑old twins Pearl and Patrick use their genius inventions and encyclopaedic knowledge of history to explore ancient worlds—from Egypt to Greece to Rome. When their time‑hop experiments accidentally threaten the fabric of reality, they turn to the ancient legends of Sri Lanka, their homeland, to unlock the key to restoring the timeline. Perfect for fans of high‑action, clever science fiction with a multicultural twist, this story blends time‑travel thrills, family heritage and non‑stop adventure for young readers.