May be you will be interested in other books by John Stephens:
Fire Chronicle, The
by John Stephens
Series : Book 2 of "Books of Beginning"
Ages 8 & Up—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?