From Guild Wars 2 Wiki
mini-dungeon with a jumping-puzzle in a cave south of Mistriven Waypoint in Lornar's Pass. If you manage to go to the final room of this cave, you will be rewarded with a Grand Chest, and the achievement Windy Cave Treasure, under the Explorer category.
|According to Magister Sieran of the Durmand Priory, the interior of the cave may be one of the Dwarves very first structures - possibly being over two thousand years old. The cave contains the tomb of Dagnar Stonepate of the Stone Summit dwarves. He was buried here together with his sword: the Sanguinary Blade, and his Ice Drake who now haunts the tomb.|