...
Galmar Stone-Fist looked up from the map of Skyrim when he heard his name being called out. He followed it to the source of the noise - an Argonian. The Serpent. Galmar regretted that his army was not enough to fight the Imperials and he had to hire men in order to win it, however it was necessary. If it meant that those damn Thalmor and the Imperial bastards were kicked out of Skyrim, he would do it.
"The Serpent." Galmar said to the Argonian. "Before you join the Stormcloaks, I need to test your abilities. I have heard stories telling of them, but I need to test them out personally. Go to Bleakcoast Cave in the hold of Winterhold. There is a book there, 'Battle of Sancre Tol' that you will have to bring back to prove yourself. It is said that the cave is inhabited by four Frost Trolls, so bring another person who wishes to become a Stormcloak with you, if you wish." Galmar explained. "I trust that it's enough information, I'll be awaiting your return, Serpent."