Collects Batman/Superman: World's Finest #12-17
*WHERE IN THE WORLD IS METAMORPHO? In the pages of World's Finest, Batman, Robin, and Superman have traversed some of the DCU's most iconic locations and teamed up with the likes of the Teen Titans, the Doom Patrol, and Supergirl, but nothing compares to the search for Rex Mason, a.k.a. Metamorpho, the Element Man! It's the World's Finest's strangest adventure! Plus, a date between Robin...and Supergirl?! *Source: dccomics.com