In this fourth installment in the Infinity Ring series, Matt de la Pena has the time travelers visit the ancient Maya. Riq, Dak, and Sera use the Infinity Ring to travel to the Yucatan Peninsula in the middle of the sixth century - but once again they must solve the riddle on their computer tablet to find out what the Break in history is and how to fix it. They guess that it has something to do with a Mayan codex. But which one? And are they supposed to protect it or destroy it? It doesn't help that the tablet tells them they should do this in 1562, but the ring lands them in 562 instead. Sera is still traumatized by her accidental trip to the Cataclysm and Riq is still worried that he has influenced his own family tree and altered his personal future. Dak, of course, just wants some tasty cheese. They need to figure all of this out while looking for other Hystorians and trying to avoid Time Wardens. Sounds like a walk in the park, right?
With each book, it's like going on a time travel adventure yourself. All of the details about life in another place and another century are fascinating. Add in the mystery, adventure, and humor and you have a winning combination. Scholastic has a brief trailer to introduce the series (in case you haven't read and of the other books yet.) We added this book and Infinity Ring #5 to the library through the fall book fair.