Taming the Hydra is an adventure module set in the Eberron campaign setting using the 3.5-edition Dungeons & Dragons rules and designed for the RPGA's Xen'drik Expeditions campaign. It was released in 2007. It is intended for four or five 9th-level characters with the ability to scale for 7th-11th-level characters.
“
"In the city of storms' greatest time of trial, an ancient tower rises to the need. By riding the hydra and finding the Stair Invisible, the old will save the new and be reborn itself." Following the Shargon Strike attack by the pirate fleet things look grim. With the weather still out of control and ships unable to get to Xen'drik easily, supplies have become increasingly rare and the hopes of the city's survivors grow bleaker by the day. The factions ally to bring relief to Stormreach. A Xen'drik Expeditions adventure optimized for 9th-level characters.
”
— Summary