In Vino Gigantus 5e

Now a single storm giant noble remains, the haughty dilettante sorcerer-prince Clovis Tempestas II. He concerns himself only with base pleasures and none more so than his immensely valuable stock of family wine. Now his beloved wine cellar has become flooded with a foul murk. To his horror strange creatures slither between bottles of his finest family vintage. He cannot be bothered to wade into such filth himself and he has no servants remaining in his household, so he has used what little magic his grape-addled mind can recall and summoned new servants: A troupe of unsuspecting adventures who will serve -- and if necessary, die -- to save his beloved wine.

This introductory adventure can be instantly inserted into any campaign without preamble, as it opens with the player characters being the unwitting targets of a Summon Monster spell! Once summoned into the very hands of a mad and drunken giant, the player characters will find themselves exploring a realm designed for creatures ten times their size as they fight all manner of strange creature, traverse larger than life obstacles and objects, encounter other adventurers who have fallen into the clutches of the mad prince Tempestas, and even risk plummeting to their death as the very foundation of the cloud castle of Stormridge Sanctum is crumbling beneath their boots!

Can the player characters placate the whims of a giant drunk on power and lost grace? Will they survive encounters with the strange animated objects that have become twisted by decades of neglected magic beneath a crumbling castle? And just what the hell is that echoing boom coming from the eastern part of the wine cellar?!

You've been granted the hospitality of the storm giant prince Clovis Tempestas II, and he's always up for a little​ more...