Inspired by Thieves of the Fortress Badabaskor, and intended for four to eight 5th to 10th level PCs (5th to 8th level, if material from Unearthed Arcana is used). From the publisher:

Set in the sweltering desert of the southern continent, this adventure is designed for 1st Edition rules, and pits the party against desert raiders as they seek to restore the trade routes and rescue a missing princess.