Detective Comics #21

Aside from Harper Row's appearance, the comic also focuses on a odd story about a love from Bruce Wayne's past who is some kind of shadow assassin named Penumbra. Her introduction is awkward, as is the resolution (or lack of) where she apparently falls to her death a second time only to return home in disgrace. The only part of the story of interest is the suggestion of the person controlling that guild of assassins. It appears the New 52 seems ready to reintroduce Ra's al Ghul.
The comic also contains a forgettable back-up story involving Kurt Langstrom who believes he may be responsible for a series of grizzly murders. Pass.
[DC, $3.99]