|Location||The northern border of Tortall, near Scanra|
|Bodies of water|
|Established||458 HE (by Third Company)|
|Leader/Governor|| Wyldon of Cavall (district commander)|
Vanget haMinch (General of the Northern Armies)
|Residents|| King's Own (until 460 HE)|
Wyldon of Cavall (temporary)
Soldiers of the Army
|Major Events||Fall of Giantkiller|
|Affiliation||Tortallan Armed Forces|
|Head of State|
|Tortallan Universe place|
|Latest Appearance||Lady Knight|
Fort Giantkiller was a fortified command post used during the Scanran War. It was named after Raoul of Goldenlake, nicknamed the "Giant-killer", by the men of the Third Company of the King's Own. It was a little more than 100 miles east of Fort Steadfast, and about 100 miles west of Northwatch Fortress.
Before Wyldon of Cavall changed his command post to Fort Mastiff, he held command at Fort Giantkiller. This was also where he met incoming knights from the south in order to give them their new posts.
The Scanran War
The fort fell on April 26th in 460 HE, and the loss was a huge blow to the Tortallan forces. The enemy used a battering ram and multiple killing devices in order to destroy the fort and its inhabitants. The Tortallans heard of the loss of the fort due to the work of Veralidaine Sarrasri, who was in eagle form. She was able to bring the news to Lord Wyldon at Fort Mastiff. General Vanget sent a company of men in to hold the area from further attacks, and to make sure that Scanrans didn't use the ruins as an attack base. Vanget also wanted to build a new fort in the same spot, as they couldn't leave that area unprotected, but Lord Wyldon talked him out of it because the soldiers thought that area was cursed.
Keladry of Mindelan stopped at the ruins briefly for shelter before embarking on her mission. She knew it was safe because of the Scanrans' superstitions and their fear of possible remaining ghosts. Giantkiller is also where she was met by Sergeant Domitan of Third Company, and the rest of his squad, including Fulcher, Wolset, and Lofren.
As the Tortallans gained the advantage by mid-June, due to the destruction of Blayce the Gallan and thus the killing devices, it is probable that the Tortallans built a new fort nearby in order to keep their Scanran enemies from using the destroyed fort as an attack base.