The Emerald Atlas

by John Stephens
Lexile:  720
Genre:  Fantasy

Kate, Michael, and Emma have been bounced around from orphanage to orphanage ever since the night their parents mysteriously disappeared.  Only Kate can remember the promise she made to her mother that she would take care of her siblings no matter what.  And that is what Kate has been doing for 10 years.  But when they arrive at the town of Cambridge Falls, strange things involving time travel begin to happen.  Kate, Michael, and Emma are in the midst of a new adventure, on that they may not survive, but one that they were destined for.  Saving Cambridge Falls becomes their quest.  If they can do it, they may learn more about who they are and the story behind the disappearance of their parents.