From the back of the book:
Fly the deadly skies!
An innocent visit to the city of Travar catapults you into danger, intrigue, and an ancient, magical mystery. Flying, fire-breathing Horrors plague the city's skies, attacking merchant airships and slaying their crews. The chief of Travar's Flying Patrol asks your help; your quest to defeat the monsters leads you to a hidden windling kaer high in the Thunder Mountains, where you seek a long-lost tome of magical lore that may be Travar's only hope.
Terror in the Skies is an Earthdawn adventure recommended for 6 to 8 characters of any Discipline of Circles 1 through 3.