The Space Between Worlds (Copper & Cobalt, #2)
by J. Conrad
A story of friendship, time travel, and haunting adventure in ancient Wales. Not all prisons are escapable, but a beautiful, pale stranger from another land shows Bridget something unbelievable, wonderful, and frightening. Just as Bridget thinks she has a solution to the trap she's in, she is faced with a disturbing choice that may cause a shift in her destiny which can't be undone.