The third Master Set for the HeroScape series of games, which crosses over into the realm of Dungeons and Dragons.  Includes 10 rebased figures from Dungeons & Dragons Miniatures and 55 Heroscape-style terrain pieces.

From the publisher:
Beware the Jaws of the Dragon

Evil monsters emerge from the darkest corners of Valhalla, spreading terror as they conquer and control the mystic portals that lead to other worlds. Sinister drow and brutal trolls gather in underground ruins, and rumors of black dragons are too terrifying to ignore.

The hordes of evil must be stopped. The Valkyrie Generals representing the forces of good have summoned brave adventurers, who together embark on a quest to defeat the black dragons and their wicked allies. Will they prevail or perish?