Thrymstone

Thrymstone was an ancient fortress built by frost giants in Dragonscar Gorge that was lost and buried beneath the snow for centuries as of the late 15 century DR.

Structure
The architecture of the fortress were recognizably giant in origin. Elements of the ruined fortress spanned much of the Gorge, although the main citadel remained intact and buried.

History
The fortress was erected to challenge the white dragons of the Frozenfar. According to legend, it was built by the frost giant Shattercrown using rocks that he wrested from the god Thrym.

Thrymstone served as the site of many fierce battles between frost giants and white dragons, which ultimately caused so much damage as to create Dragonscar Gorge. The struggle exhausted the dragons and triggered an avalanche that scattered the giants and buried the fortress for centuries.

In the late 15 century DR, Shattercrown launched a ruthless and tireless effort to excavate and claim the fortress. The dig was led by Shattercrown's lieutenant, Horrengar, who forced the Frosthunger Horde to dig out the massive ruins. Soon, ruined arches and walls dotted Dragonscar Gorge, but they were unable to find any holes in the main walls and so were forced to try and dig out the main gates. After several years of hard labor, much of the Horde abandoned the dig and fled Dragonscar Gorge. As they did, they attacked neighboring Shimmersky Valley, which attracted the attention of Waterdeep and led to the arrival of adventurers. These adventurers averted a second war between giants and dragons by driving off the white dragon Kovanyrach, and then defeated Horrengar and Shattercrown just as they succeeded in excavating the gates and reclaiming the fortress.

Appearances

 * Video Games
 * Warriors of Waterdeep