Ever since the death of Superboy during the Infinite Crisis, fans have wondered what became of Krypto, and what those events meant for him. Now, writer Kurt Busiek is joined by sensational guest penciler Rick Leonardi (SUPERMAN RETURNS: LEX LUTHOR, BATGIRL, NIGHTWING) to tell a surprisingly touching tale of the Dog of Steel’s most tragic days, laying the groundwork for Krypto’s surprising future.