Title: Ruby Red
Author: Kerstin Gier
Sixteen-year-old Gwyneth discovers that she, rather than her well-prepared cousin, carries a time-travel gene, and soon she is journeying with Gideon, who shares the gift, through historical London trying to discover whom they can trust.
Gwyneth Shepherd’s sophisticated, beautiful cousin Charlotte has been prepared her entire life for traveling through time. But unexpectedly, it is Gwyneth, who in the middle of class takes a sudden spin to a different era!Gwyneth must now unearth the mystery of why her mother would lie about her birth date to ward off suspicion about her ability, brush up on her history, and work with Gideon—the time traveler from a similarly gifted family that passes the gene through its male line, and whose presence becomes, in time, less insufferable and more essential.