He's a minor character from the Silver Age who teamed up with Batman, a masked crimefighter from argentina. Along with the rest of the Batman of All Nations, he was revamped by YOU GUESSED IT... GRANT MORRISON! He's actually pretty damn-darnit-retro-cool in the Club of International Heroes (Collected as the Black Glove - a story that unlike RIP is worthy of praise.) And just in general one of the few (Very, very FEW) MORRISON PLAYS WITH THE BAT-SILVER-AGE YUK YUK things that... Were good. Actually genuinely VERY good, IMHO. (Squire the same, loved her.) But that doesnt' necessarily mean I want him sticking around.