The fate of Sirrus and Achenar and their prison books.
Visit the worlds of the original game's red and blue prison books. Released in 2004 and produced by Ubisoft, with a 360-degree interface similar to Exile.
"Buried lies. Sinister truths. Piece together a shattered past. In Myst IV Revelation, the next chapter of the greatest adventure saga of all time, you'll travel through environments pusling with life to unearth a treacherous scheme involving two of Myst's most sinister villians."
– Original game back of the box description
Wall reused, reorchestrated and expanded themes composed by previous Myst composer Robyn Miller; for example, Wall reused Atrus' Theme from Riven and the brothers' leitmotifs from the original game. Wall credited the Myst universe and story with allowing him to write music "Western ears are somewhat less accustomed to"; Revelation's score was inspired by Eastern European music that Wall enjoyed in the 1990s.
In addition to Jack Wall's score, the game features a song by Peter Gabriel entitled "Curtains", originally a B-side from Gabriel's single "Big Time". Gabriel also performed a voiceover for the game.
