In the sixth installment of the time-traveling chapter book series; the Hidden Scrolls take siblings Peter and Mary back to ancient Babylon; where Daniel is about to get thrown into the lions' den. The Secret of the Hidden Scrolls series follows siblings Peter and Mary and their dog; Hank; as they discover ancient scrolls that transport them back to key moments in biblical history. In their sixth adventure; the trio travels back in time to the bustling city of Babylon. When Peter and Mary meet Shadrach and Daniel; they learn that there are new laws that make it illegal to worship or pray to anyone but the king. As time to solve the scroll runs out; Peter and Mary face their biggest challenge yet--a sneaky high priest who wants to get them thrown into the lions' den with Daniel.