WotC Code:

The following text is taken from a description on the WotC website:

'Stand Against the Coming Night!

Shadows in the forest deepen as an oracle among the Yuirwood’s half-elf inhabitants foretells the reemergence of the Duskwalker, an ancient and corrupt star elf wizard. Missing travelers and lost goods all point to a circle of standing stones within the forest. Perhaps, like its counterparts elsewhere in the Yuirwood, this stone henge allows for travel to another place—but where? And what growing darkness awaits those bold enough to find out?

The Twilight Tomb is a stand-alone DUNGEONS & DRAGONS adventure designed to take four 3rd-level characters from the sun-dappled paths of the Yuirwood into a realm created by a bygone betrayal. Although the adventure is set in the Aglarond region of Faerûn, it can easily be placed in any D&D campaign.'

Note: This module was formally entitled "Citadel of Glass".