Yeah I remember reading that in the HTTE annotations. Okay, so C'baoth was somehow cloned, at a different location, by parties unknown, using the genetic sample taken from him at Yaga Minor prior to the launch of Outbound Flight. Whoever created C'baoth then let him loose. Somehow C'baoth made his way to Wayland, a secret planet. He then encountered the Guardian of the Mountain and killed him, taking over Mount Tantiss. Liking it, he decided to stick around and never left. Idk, Zahn, that seemed very contrived to me. Who created the clone? Why? How? How did the clone even know about Wayland or find it? It makes way more sense if Palpatine set up his storehouse, decided to test one of the Spaarti's to see if they still worked. He made Joruus to see if he could clone Jedi effectively. When the resulting madness set in, Palpatine decided to abandon that venture and used the mad C'baoth to guard his mountain, placing in him deep mental commands to "stay here and kill anyone that tries to get inside". Placing Mount Tantiss under the care of a sane, Dark Side Master is a recipe for disaster. The Spaarti cylinders alone can create an army in as little as a year. Less, if you use Thrawn's technique.