Deep in the Forgotten Realms, the nation of Thay—notorious for its tyrannical, red-robed wizards—casts an ominous shadow on your table. Secrets are passed in the dark; a looming threat of unimagined power seeks to crumble societies, and one name is at the center of it all—Szass Tam.

Dive into a world of enchanted espionage, fragile alliances, and clandestine missions in this magical spy thriller adventure built for high-level play for characters of levels 11–20. Will you be bold enough to face the might of the lich Szass Tam and stop him before he unleashes his demonic undead horde upon the world? Or will you let it all fall to ruin?

Contents:

• Level 11–20 adventure, plus Thay Gazetteer
• 14 magical items
• 6 high-CR creatures, including a stat block for Szass Tam and advice on how to play him
• 5 chapters detailing the adventure with 20+ dedicated maps
• Advice on how to run a magical spy thriller and adventures in Thay