Encounters in an extra-planar city - A thousand races from a thousand different worlds gather in the city to buy, sell, and trade. Strange things can happen in a place like this.
Each product has Further Adventure™ hooks to aid in writing follow up quests, and an exclusive spell, monster, item, god, or optional rule that is previously unpublished.
A journey to the pits of the abyss - Guide your party into the abyss searching for a lost pool to aid an aging wizard. A sidequest for 4-6 11th level characters
Encounters in fiendish locales - Ten Encounters among the depths of the lower planes. Demons, devils, tricks, and horrors to include when your party decides to travel to horrible places.