Before joining Batman as the third Robin, Tim Drake was given a modern redesign of the Robin costume and sent to train abroad with numerous experts to refine his martial arts.[12] When Bruce Wayne retires after Knightfall, Robin goes solo to defend Gotham. Robin would eventually go on to co-star with other teenaged superheroes in Young Justice and Teen Titans. He also made guest appearances in other DC comic books such as Nightwing and Azrael.