Our heroine, Gwyneth, comes from a family that carries a rare time travel gene. They are part of a mission to complete a puzzle that will potentially unlock the key to immortality. She has grown up believing that her cousin Charlotte will be the latest to manifest the gene and is surprised and shocked when it isn't Charlotte, but Gwyneth herself, destined to fulfill the family's genetic legacy.
Paired with apparently obnoxious, but oh-so-hunky Gideon de Villiers, Gwyneth is thrown into a series of adventures which, by the end of the book, appear to be only the beginning of her quest. Her BFF, Lesley, helps her with Google searching about time travel, but also spends a lot of time getting her in trouble with a mysterious teacher at their school who also seems to be involved in the historical mess.
I really didn't want to commit myself to reading any more trilogies right now, but I don't think I'll be able to resist the next book in this series ... aaarrrgghh!