From back cover:
An artifact from a run-down Startown bar... a sinister, powerful merchant searching for the secrets of a lost civilization... a kidnapping and a night attack in a peaceful city. these are just a few of the problems encountered as a band of adventurers begins a search that will take them down the TRAIL OF THE SKY RAIDERS.
The second of the Sky Raiders campaign, TRAIL OF THE SKY RAIDERS follows the fortunes of a band of adventurers caught up in the continued search for an ancient, fabulously wealthy culture of plunderers who vanished without a trace centuries ago. Playable by itself or as the sequel to LEGEND OF THE SKY RAIDERS the adventure combines mystery, confrontation, and the secret of a lost civilization into a dangerous and exciting quest ... for the TRAIL OF THE SKY RAIDERS.