Destruction Ritual Spell

Background
is a quest activated after achieving level 100 Destruction and talking to Faralda in the College of Winterhold. Inquire about further magic and she will give you a book titled "Power of the Elements" with a single page of vague directions to ruins in the northern area of Skyrim:

''Northward, haunted northern coastline ''And south, Dwemer live and toil, ''A simple place, a shield from draft. ''At this stand wield mage's craft So fierce the sea will boil.

Windward Ruins
Firstly, travel to Windward Ruins, south-west of Dawnstar. In the ruins resides a pedestal. when activated the book places itself on the stand. Casting a Fire spell at the pedestal (not the book) will trigger another page of text to appear after picking the book back up. This time giving slightly less vague directions to ruins in the south of Skyrim near the Throat of the World:

''Under Greybeards' morning shadow ''At this northern watch, long lost ''Nirn's hoary Throat does scrape the sky. Here unleash a chilling cry And gild this stand with frost.

North Skybound Watch
Secondly, travel to North Skybound Watch, on the south-western edge of the Throat of the World south-east of Riverwood. If you have not already discovered the location, it is easiest to get there by starting at Helgen and going east. North Skybound Watch is located north of the road running between Helgen and Ivarstead. If you are traveling from Helgen, there is a path on the left side of the road before you reach the Falkreath Stormcloak Camp. Continue on this path, North Skybound Watch is just beyond Orphan Rock. After placing the book, this time cast an ice spell at the pedestal before picking the book up. The next page directs you to a location near Karthspire.

''Over western river waters, ''By Karth bounded, south and north ''On mountains sits a humble crown. ''Sky's wrath on this stand bring forth To shake these snowcaps down.

Four Skull Lookout
Thirdly, travel to Four Skull Lookout, east of Markarth and just south of Karthwasten and north of Sky Haven Temple. This time place the book and cast a lightning spell at the pedestal.

Finally, take the book back and then go to your inventory and read it. This awards you with the Destruction spell Fire Storm and more text in the book, this time a grim-sounding message from Shalidor.

Elemental magic wielded,

Elemental thoughts displayed.

Havoc wrought as if for sport,

Efforts to impress fall short.

I'll merely use a blade.

Seeking study, wanting learning,

Recklessly aroused my rage!

My pupil you would be, or more?

Presume not of Shalidor,

You feeble foolish mage!

Quickly dispatched, worthlessweakling,

Though this tome I gladly claim.

A diamond in the rough, I find,

Shining gem from feeble mind.

Now die and curse my name!

Rewards

 * Reading the completed book grants you the Fire Storm spell.
 * Blizzard and Lightning Storm Spell Tomes are now available for purchase from Faralda in the College of Winterhold, both with a base price of around 3,000.