Twelve-year-old twins Matt and Em Calder have extraordinary powers: They can bring art to life or enter paintings at will. As their powers grow, they are in danger from two groups. One wants to imprison them, the other wants to use them to access the terrors of Hollow Earth.
Love this story. There are Animare (who can animate art and creatures), Guardians (who watch over and protect the Animare), dangerous people who are trying to capture the twins, demons, magical creatures, and a lot of adventure and suspense. The book goes back and forth between the twins in the present and monks from the Middle Ages.
I picked this book up on a whim at the library last month. Why didn't I know about this series? It is fabulous. There are two more books in the series. I can't wait to get to the library to pick them up.