Fall of the Paladins
Used to store magical energy.
Elmo has one that he used to assist him move his home from Faelin to Southern Azor. He has also used to to help him save the EU party from death when they encountered Tycuszar’s wyvren riders, by teleporting them all to safety.
His star stone was once again used to teleport the US party from Edryn to Menethar on day 12. The magic in Elmo’s stone needs to be recharged.