An immortal waits for centuries for a maiden to break a curse that prevents him from moving on. Even the promo art is reflective of each other.

Both ladies are non humans that fall in love with humans and overcome the odds and lifetimes for their love.

Time travel with a film star assistant and a few others falling back in time. The assistant falls on top of a prince that brings the strangely dressed female home.

Similar books themes. Rising up despite enemies pushing you down and plotting against you.