The Fire Chronicle (The Books of Beginning #2)

It's been six months since Kate, Michael, and Emma confronted the Dire Magnus, but the trail to their long-missing parents remains cold. Then Michael and Emma find a man who saw them ten years ago--three days after they disappeared. He knows about a map of a distant land, a place shrouded in mystery that may lead them to their parents.
Meanwhile, Kate's connection to the Book of Time is growing stronger and stronger, until a dangerous trick gets her stuck in the past, searching for a friend to help her.
Only a perilous quest and a daring risk will help the children to harness the power of the Books of Beginning. But will it be enough to save them?