The Time-Travelling Cat and the Tudor Treasure

Ka, the time-travelling cat, has disappeared, leaving just one clue. Topher soon realises that she has gone back to Elizabethan England, and he fears that Ka is in terrible danger. In doing so, he meets Queen Elizabeth and Doctor Dee, the court magician and astronomer, who thinks Ka can help him find the elusive Philosopher's Stone.

Ka, pisica care calatoreste in timp, a disparut, lasand doar un indiciu. Topher realizeaza curand ca s-a intors in Anglia elisabetana si se teme ca Ka este intr-un pericol teribil.