Excursion to the Delo Ruins

From publisher blurb: After beating back the forces of The Triad the party’s fame has spread. Jobs have come in droves but none seem to interest the group until a strange letter is delivered by a young courier. A historian named Nagel Littlestrom would like some bodyguards for a pending trip to a place called the Delo Ruins to the east. Certainly a few items can be located that would be of interest to the party… This adventure setting was designed for 5th Edition AD&D for the Filbar Campaign for a 4-6 adventurers of middle level and a DM.