Superman: The Shrinking CityHardcover, 1 September 2009

Thirty years ago, BRAINIAC shrank the city of KANDOR and sealed it inside an unbreakable glass container. The evil supercomputer is still exploring the universe, collecting cities from hundreds of planets. SUPERMAN must stop BRAINIAC from bottling up METROPOLIS, and then save KANDOR -- the last remnant of his home planet, KRYPTON.