Irrational Games now offers Columbia: A Modern Day Icarus: Part 2, a continuation of the pseudo-documentary discussing the events surrounding the formation of the floating city of Columbia that serves as the setting for BioShock Infinite, the upcoming first-person shooter sequel. This touches on the legend of the "Songbird," and the sinister implications of it being the guardian of the "Lamb of Columbia," which may just end up playing into the game.