Becoming a Shadow Assailant for Freeport  

1. Speak to Librarian Motius Feldarn in The Academy of Arcane Science in the North Freeport.
2. "I must take up arms against the challenging Void beasts that are using the Void Tempests as portals into Norrath." You need to destroy a Void Tempest.
• You must be in a zone appropriate to your level for this quest!! The Void Tempest will not drop a chest if the mobs around it are grey to you.
• Dark horrors and dark seepages are found around Void Tempests, which are the unusual storms from Part 1 of this event. They are found in the same locations, click here.
• The Dark horrors and dark seepages are of a level appropriate to the zone they are in. A shadow brute may also spawn. You'll eventually notice something different about the Void Tempest...
• Kill the Void Tempest, loot a Void Storm Shred from the chest for the next update. note: It does not drop every time!
3. Return to Librarian Motius Feldarn.

There is no repeatable quest for this event. Instead, keep killing Void Tempests for their Void Storm Shred, which the Academy is very interested in to get more notes for rewards.