Joined: 11 Nov 2006
Location: Bevin Field Office - KI: 01350736
The Fissure began to consume the objects and air around it, accelerating the collapse of the Age. Both the telescope and, shortly after the escape of Catherine and Atrus, the Stranger, fell into the fissure, and presumably landed on Earth, in Eddy County, New Mexico. Both the telescope and a bleached Whark skeleton can be found half-buried in the desert on the far side of a volcano in the game Uru: Ages Beyond Myst. The fissure plays a notable role in this game, appearing on both the player's home Age of Relto and in the Age of Er'cana. Additionally, in Myst V, the large Moiety knife from Riven is found in the crater of the volcano.
I'm thinking this is pure speculation. Thoughts?