BIG HARLEY REVEAL: why does she wear the three diamonds? Because of the first love letter Joker (Napier) gave her long ago. Written on a playing card--the 3 of diamonds.

Go buy BATMAN: CURSE OF THE WHITE KNIGHT to find out more!! pic.twitter.com/fcowSHhXr8

— Sean Gordon Murphy (@Sean_G_Murphy) June 7, 2019