|The Guild Wars 2 Wiki has an article on Sohothin.|
Sohothin is the name of Prince Rurik's Fiery Dragon Sword, an ancient and magical Orrian sword that predates the Exodus of the Gods. Its sister sword, Magdaer, is wielded by King Adelbern. The two swords were gifts to the Ascalonian royalty to ensure continued peace.
Sohothin's last known location is Hell's Precipice.