 These series concluded in 2000 with the DC Comics crossover "Joker/Mask", in which the magical Mask finds its way into the hands of Batman's arch-enemy The Joker.The first major storylines and the Joker/Mask crossover have all been collected in trade-paperback and in a limited edition hardcover box set.It was later revived as a spin-off series called "Itty Bitty Mask" and then another revival called "I Pledge Allegiance To The Mask".