Dragonstone

The Dragonstone is a mysterious object which is currently used to provide players with quests. It also serves as a (re-)spawn point. The Dragonling pet (and maybe others, but it is untested) will find it's way back to the Dragonstone if it gets lost.

Uses
The Dragonstone currently serves as a respawn point and quest access point. It has a collapse difficulty of "impossible" and thus cannot currently be placed in the player's inventory. You may instantly teleport back to the Dragonstone at any time by pressing LCONTROL and the R key at the same time, unless you changed it with Custom Keybinding.