The crossover event every Aspen fan has been waiting for has finally arrived! Aspen Matthews is a woman of two worlds, the one above and the one below. Now, both worlds face certain annihilation at the hands of a supreme being from another universe - the Soulfire Universe! Prepare to experience the Worlds of Aspen as you've never seen before as Michael Turner's flagship creations, Fathom and Soulfire come crashing together for the first time ever! And the results will be nothing short of a new Aspen Universe altogether! This. Changes. Everything.