Here are the details from the Tavernmaster Games storefront at RPGNow:
Centuries ago, Yllburn was King of Dragons and scourge of mankind. But the wizards united and turned him to stone. One mercy only they allowed him: that each midsummer he might return to life for one day, putting his mighty powers of enchantment in the hands of his rescuers. Can the adventurers struggle past riddles, trials and puzzles to win their heart's desires on Stone Dragon Solstice?
This GM dungeon is for a handful of low-level characters. It is written for Tunnels & Trolls version 7.5, but is readily adaptable for other editions. Accompanying sound effects are available free on the Tavernmaster Games page of the DriveThru RPG website. Note that this dungeon requires extra materials - fun gimmicks that are fully described in the text - and the GM will need to source these separately.