MAP25: Valley of Echoes (Alien Vendetta)

MAP25: Valley of Echoes is the twenty-fifth map of the first release of Alien Vendetta. It was designed by Anders Johnsen. It uses the music track of Heretic's E1M9: The Graveyard. In the second release of the megawad, this map was removed and replaced with MAP24: Clandestine Complex, with MAP24: Demonic Hordes moved to the MAP25 slot.

Secrets

 * 1) (Sector 205)
 * 2) (Sector 285)
 * 3) (Sector 329)
 * 4) (Sector 349)
 * 5) (Sector 351)
 * 6) (Sector 431)

Trivia
Anders Johnsen, the map's author, considered it "the least playable and worst looking map in AV", which is why it was the one chosen to be replaced in the megawad's second release.