The Time-Travelling Cat and the Aztec Sacrifice (Time-Travelling Cat series)

Topher Hope is distraught when Ka, his devoted cat disappears, leaving only one word on his computer as a clue: TENOCHTITLAN. Topher is horrified. To save Ka, he must travel back in time to the home of the blood-thirsty Aztecs. Along the way, Topher befriends Pima, an Aztec girl doomed to be a sacrifice to the gods. In this fast-paced adventure, Topher races against the clock to save Pima and Ka from terrible danger.