The Summoning: Forgotten Realms: The Return of the Archwizards, Book 1 (Unabridged‪)‬

From the depths of the demiplane of shadow comes a new magic so mysterious it confounds even the Chosen of Mystra.

From beneath the dune seas of Anauroch escapes one of Toril's most powerful and ancient evils - the phaerimm. From Evereska, the last elven refuge on comes word of invasion. From nowhere appears a group of enigmatic sorcerers determined to destroy the phaerimm and save Evereska... for purposes known only to themselves.

From the author of Crucible: The Trial of Cyric the Mad, Beyond the High Road, and Death of the Dragon (with Ed Greenwood) comes the most Realms-shaking event since The Threat from the Sea.