Red Sky EP is the companion CD to Vheissu (2005) by Thrice. It was released on April 11, 2006. It contains live acoustic versions of Under A Killing Moon (originally from The Artist in the Ambulance), Red Sky, and For Miles, and also an AOL Sessions version of Of Dust and Nations, erroneously listed as an acoustic track (all originally from Vheissu). It also contains two B-sides from Vheissu, Flags of Dawn and The Weight of Glory.