13th Street volume 1
"Cousins Malia, Ivan, and Dante are visiting their aunt Lucy for the summer. But on their way to Gulf City's water park, they get lost on 13th Street. Only it's not a street at all. It's a strange world filled with dangerous beasts! Will the cousins find their way back to Aunt Lucy's?" --HarperCollins.com
"In modern Mexico, Sitlali is all alone after the death of her beloved abuela. Targeted by a dangerous gang member, she flees to the United States. As a memento, she takes with her an ancient conch shell. In 1521, Calizto is trapped in the Aztec city of Tenochtitlan. He has fought valiantly for his people against Spanish invaders, but hope is fading. Desperate, he takes up a sacred conch and sounds a plea to the gods. The conch holds magic neither...