J'zargo's Experiment

Jzargo's Experiment is a quest given to you by the Khajiit mage, J'zargo, at the College of Winterhold. He needs you to test out his 'flame cloak' scrolls he's created. He tells you they are especially 'potent' against the undead.

Once he's given you the ten scrolls (but you only need one), head to a place with undead, like Draugr, and use one of Jzargo's scrolls.

Be wary because they do some damage to yourself. Use them when you are nearby the undead, and it should kill them almost instantly. Three undead are needed to be killed.

Return to J'zargo and he will reward you - you are allowed to keep the rest of the scrolls and he is available to be a follower.