Eberron The Chronicle Of The Last Prophecy
Aric Blacktree was rescued by the Heroes along with Lord Bren. He was found chained inside the Mark of Prophecy just before the destruction of Cyre. Same as the Drake brothers his exposure at the Mark manifested him a dragonmark, although in his case, an Aberant one. He returned at Fallcrest devising an Eldrich Machine that would blow half the city to pieces. The heroes managed to stop his plan and defeat him in battle but as soon as he fell a mist surrounded the area whisking him away. His whereabouts as his reasons behind the attack are currently unknown.