Mister Miracle #1 (1971) CGC DC Comics
A young man named Scott Free comes upon Thaddeus Brown, an escape artist who bills himself as Mr. Miracle, and Brown's assistant Oberon, in the process of rehearsing an escape stunt. When the two are abruptly attacked by Inter-Gang thugs, Free pitches in and helps defeat the gangsters. Later, Scott learns that Brown has been challenged to perform the ultimate escape by Steel Hand, an Inter-Gang chief with a hand of metal. He also demonstrates one of his own escapes to Brown and Oberon, effected with a gadget from New Genesis. Later, Brown is shot by a sniper employed by Steel Hand, and Scott Free takes over the identity of Mr. Miracle to bring Steel Hand to justice. After Steel Hand's capture, Oberon becomes the new Mr. Miracle's assistant, and the new Miracle promises to continue Thaddeus Brown's escape-artist career.