Mark Hanner was a Private Investigator in Gotham City who caught Barbara Gordon's eye while she worked at the Gotham City Public Library.[1]

When Hanner failed to show up at the library at the usual time Barbara tracked him down as Batgirl and discovered he'd been kidnapped and separated from his insulin.[1] After saving his and his sister's lives she approached him as Barbara Gordon and the two of them went on a date where they went ice skating in the park and had dinner at the Tavern in the Green.[2]





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