Cleansing the Stones

After I destroyed Miraak's control of the Wind Stone, Storn has asked me to free the remaining sacred Stones using my "Bend Will" Shout.

Walkthrough
After returning from the Temple of Miraak with Frea, she will introduce the Dragonborn to her father, Storn Crag-Strider who lives in Skaal Village. He will send the Dragonborn on a quest to obtain the Bend Will dragon shout from Saering's Watch and then to use the shout on the Wind Stone. After doing so, the Dragonborn will be asked to cleanse the other four stones (Sun, Beast, Earth, and Water) to release them of Miraak's influence.

Reward
After completing this quest, access to the powers of the All-Maker Stones will be granted, namely:
 * Wind Stone - North Wind
 * Earth Stone - Bones of the Earth
 * Sun Stone - Sun Flare
 * Water Stone - Waters of Life
 * Beast Stone - Conjure Werebear

Trivia

 * This quest can be completely skipped by obtaining the first word of Bend Will from Saering's Watch and shouting at the Wind Stone before meeting Frea at the Temple of Miraak. By doing so, Storn will mention the land is at peace and The Path of Knowledge will begin.
 * A helpful tool to defeat the lurkers that guard the stones is Chillrend, an enchanted glass sword found during the Thieves' Guild mission The Pursuit. When it is charged, it can knock down the lurker, preventing it from causing any damage and allowing an easy kill.

Bugs

 * If Fanari Strong-Voice dies or is killed while cleansing the first stone (the Wind Stone) with the Skaal villagers, the conversation she later has with Deor that triggers a miscellaneous objective that leads to the side-quests A New Source of Stalhrim (which allows the Dragonborn to smith stalhrim weapons and armor) as well as Lost Legacy, won't happen and neither will the quests.
 * When using the Bend Will shout on the stones, those around the stone may walk away as if freed, but the arches may not crumble, no lurker will be spawned, and some of the inhabitants will still act as if under Miraak's influence. (Try fast traveling away from the stone and then back after using the bend will shout on it.)

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