The Therayle farm, which has been in the family for generations, was the best producing in the region. It now faces ruin. Hugh Therayle, the current owner, is at wit's end trying to reestablish even a modicum of control over the disrupted land. But, when Hugh saw the ancient doorway jutting up from the middle of the field where his corn used to be, he knew that this wasn't the type of problem a plow could solve. More than two centuries ago, a red wizard by the name of Houn made a discovery that shook the foundations of magic on Toril. Yet, due to a considerable amount of effort on his part, it never saw the light of day. The exact nature of this discovery is unknown but it involves the location of the skeletal fragments of an ancient being. The weave, which governs all magic on Toril, reacts strangely to the fragments. More information existed before Houn destroyed his research and fled Thay. His current whereabouts are unknown but many of his peers have attempted to track him down and steal his research for themselves.
Long unoccupied, the pyramid on Sorcerer’s Isle now flows with strange magical energy, warping creatures and the landscape around it. The Cult of the Dragon and Red Wizards of Thay have taken notice, and it’s up to you to keep whatever power dwells there out of their hands. An adventure for 5th-10th level characters.
The Cult of the Dragon leads the charge in an unholy crusade to bring Tiamat back to the Realms, and the situation grows more perilous for good people with each passing moment. The battle becomes increasingly political as opportunities to gather allies and gain advantage present themselves, all centered in Waterdeep. Continuation of Hoard of the Dragon Queen.
The Cult of the Dragon, along with its dragon allies and the Red Wizards of Thay, seek to bring Tiamat from her prison in the Nine Hells to Faerûn. To this end, they are sweeping from town to town, laying waste to all those who oppose them and gathering a hoard of riches for their dread queen. Continued in The Rise of Tiamat.
In this adventure, the player characters discover the illegal actives of an ambition Red Wizard operating out of an enclave in a small town. This adventure is short and a great way to introduce players to Red Wizards. For a group willing to use diplomacy fighting they can cut down there combat. The adventure is found on pages 284-287