Thrall's stay in Durnholde
After Thrall was found amongst the bloody bodies of his murdered parents by then-Lieutenant Aedelas Blackmoore, he was taken to Durnholde Keep. He was trained and taught by many, wet-nursed by a human woman, and grew to befriend her daughter, Taretha Foxton.
Blackmoore beat Thrall and tortured him in the ring. Taretha began to write him letters in his prison, and he wrote back to her. eventually writing that he would escape. Taretha created a diversion while Thrall escaped from his cell. They met up outside the fortress, and Taretha gave him provisions and supplies. He then left Durnholde, hoping never to return again.
After liberating the encampments, Thrall laid siege to Durnholde and, after defeating Blackmoore in single combat, completely destroyed it, calling upon the Spirit of the Earth to level the fortress. It remains in ruins today and is now used as an outpost of the Syndicate, which has staked a claim to many of the ruins in Hillsbrad, Arathi, and the Alterac Mountains.
In CataclysmThis section concerns content exclusive to Cataclysm.
Durnholde Keep has been seemingly abandoned by the Syndicate and taken over by the Forsaken. Under the command of Captain Jekyll at Eastpoint Tower, the Keep is a staging ground for level 23-25 Horde recruits. In it roams a handful of elite mobs: Zephyrus, Teracula, D-1000, Infernus, and Bloodvenom.
Durnholde Keep of the pastThis section concerns content exclusive to The Burning Crusade.
Durnholde Keep is the focus of the questing in the Old Hillsbrad Foothills, accessed via the Caverns of Time. In the time-travel reality, Durnholde is bristling with guards and also is the site of five internment lodges where captive orcs are held. Players must enter Durnholde, set the lodges ablaze, and aid Thrall in his escape. See Escape from Durnholde Keep.