▁Dick ▁Gray son , ▁became ▁her ▁partner ▁in ▁the ▁series , ▁with ▁the ▁two ▁frequently ▁referred ▁to ▁as ▁the ▁" D ynam ite ▁Du o : ▁Bat g irl ▁& ▁Robin ". ▁Bat g irl ▁meets ▁Bat w oman ▁in ▁Bat man ▁Family ▁# 1 0 , ▁when ▁the ▁retired ▁super h ero ▁briefly ▁returns ▁to ▁crime - f ight ing ▁( before ▁the ▁Bron ze ▁T iger ▁mur ders ▁K ane ). ▁The ▁two ▁fight ▁K iller ▁M oth ▁and ▁Caval ier , ▁and ▁learn ▁each ▁other ' s ▁secret ▁ident ities . ▁Bat w oman ▁ret ires ▁once ▁again ▁at ▁the ▁conclusion ▁of ▁the ▁story , ▁leaving ▁Bat g irl ▁to ▁continue ▁crime - f ight ing . ▁Although ▁this ▁series ▁ended ▁after ▁three ▁years ▁of ▁publication , ▁Bat g irl ▁continued ▁to ▁appear ▁in ▁back ▁up ▁stories ▁published ▁in ▁Det ect ive ▁Comics ▁through ▁issue ▁# 5 1 9 ▁( Oct ober ▁ 1 9 8 2 ). ▁ ▁Cris is ▁on ▁In finite ▁Earth s , ▁a ▁limited ▁min is eries ▁published ▁in ▁ 1 9 8 5 , ▁was ▁written ▁in ▁order ▁to ▁reduce ▁the ▁complex ▁history ▁of ▁DC ▁Comics ▁to ▁a ▁single ▁continu ity . ▁Although ▁Bat g irl ▁is ▁a ▁featured ▁character , ▁her ▁role ▁is ▁relatively ▁small — she ▁del ivers ▁Super g irl ' s ▁e ul ogy ▁in ▁issue ▁seven ▁of ▁the ▁ 1 2 - part ▁series . ▁The ▁conclusion ▁of ▁Cris is ▁on ▁In finite ▁Earth s ▁changed ▁DC ▁Un iverse