Dragons

Sisslith, Guardian of Frostgard:

To reach Sisslith take the Monastery of the Seraphim Main Portal, then walk Southwest and into the Monastery entrance marked below:

Walk through the Monastery and out of the cracked wall in the back room, entering a snowy cave:

Take the exit at the end of the cave, this will bring you to Frostgard:

Follow the path all the way to the end, Sisslith is standing at the yellow X: