The Lord of Illusion by Kathryne Kennedy

He’ll do anything to save her…
Rebel Lord Drystan Hawkes dreams of fighting for England’s freedom. He gets his chance when he finds a clue to opening the magic portal to Elfhame, and he must race to find the slave girl who holds the key to the mystery. But even as Drystan rescues Camille Ashton from Dreamhame Palace, it becomes unclear exactly who is saving whom.

For the fate of humankind lies with Camille…
Enslaved for years in a realm where illusion and glamour reign, Camille has learned to trust nothing and no one. But she’s truly spellbound when she meets Drystan—a man different from any she’s ever known, and the force of their passion may yet be strong enough to banish the Elven Lords from this world forever.