The Time-Travelling Cat and the Aztec Sacrifice - Julia Jarman - Bog

Topher is desperate to find his beloved cat Ka when she disappears, leaving a single clue on his computer: TENOCHT*I*TLaN. The people of the wondrous, floating city of Tenochtitlan believe Ka is one of their gods, but El Sol, a piratical Spanish conquistador, thinks she is a witch.