Guard your mortal heart.
Can't say I didn't get the memo. No warning though, fair or otherwise, could prepare anyone for the delight and devastation brought on by The Folk of the Air series by Holly Black. The Cruel Prince riled me, The Wicked King tortured me and The Queen of Nothing has all but destroyed me. Cardan and Jude's tale of treachery and bad romance is brutal and fast paced. Don't say I didn't warn you.