Your Time or Mine: Book 1 in quadrilogy When Times Collide

Nineteen year old Sylvia Danbury, doctor, actress and writer, adores her godmother, Madeleine Robbins who is an actress and painter. When Madeleine goes away to die at the age of 81 Sylvia is devastated. That is, until she finds a way to travel back in time and meets Madeleine as young. When the war comes both know they have to be involved, while in 2002 from where Sylvia travels she is more than attracted to Madeleine's son, Jake.