Gatekeepers (Dreamhouse Kings)
By Robert Liparulo.
Description
With their mother still missing after going through a Civil War time portal in their spooky house, and their father in jail under a false accusation, Xander, David, and their younger sister continue to try to bring their mother back, now with the help of an old relative who has turned up unexpectedly. - from Amzon
ISBN(s)
1595547290, 9781595547293