From the Back of the Book:

For five years, the Possibility Wars have raged across the globe. Now, at last, the Storm Knights face their greatest challenge, the battle that will save the world... or destroy it.

From the palace of Dr. Mobius to a mid-air battle with Tharkoldu; from a witch-burning in Boston to a struggle of Nightmares in New Orleans; and finally, the ultimate clash of good and evil beneath the desert sun. The Knights will need every bit of skill, luck and possibility energy they possess to survive.

Also included in this super-adventure are post-Possiblity War scenarios, a Torg-MasterBook conversion, and details on the pocket dimension of Arachnidia.

Get ready... this one ends it all.