Identical twins Caitlyn and Cassie Waters are looking forward to their class s special field trip to San Antonio. But their ability to see glimpses of the future is making them a little anxious about going home again. Now their grandmother is certain that their visions might mean danger, and their mom and aunt are whispering on the phone behind closed doors. The girls know that something big is going on with their family, but Caitlyn and Cassie can t figure out what.