The Time Traveler's Wife: Audrey Niffenegger

Impossible but true.

Now adapted into the major Sky TV series, The Time Traveler's Wife is the international bestselling novel of a time-altering love. Henry is a librarian who suffers from a rare condition where his genetic clock periodically resets, finding himself pulled suddenly into his past or future. Meanwhile, Clare is an artist waiting all her life for her great love Henry to appear. In the face of this force neither can prevent nor control, Henry and Clare's struggle to lead normal lives is both intensely moving and entirely unforgettable.