Superman #670

Superman comes face to face with the mysterious third Kryptonian living on Earth in "The Third Kryptonian,' Part 2 of 3! Revelations about Krypton's past, its survivors and its enemies come fast and furious in a centuries-spanning story of interstellar adventure and survival. But someone's stalking the third Kryptonian...and now he's after Superman, too! This issue has all the answers - and leads directly into SUPERMAN ANNUAL #13.

Image: Superman #670 - DC Comics

Superman #670