My gaming group is contemplating our first new Greyhawk campaign in about two and a half years. It's going to be a first-level campaign, set in our homegrown city of Obsidian Bay, and I'm going to be the primary DM. The game is still in its planning stages, but I've already identified a few themes.
The stirge. It is a monster whose name echoes down the halls of dungeon crawling history, evoking terror and scorn as it does so (terror for low-level characters trapped in a cavern with them, scorn for high-level adventurers all but immune to their blood-sucking attacks). This monster, whose roots date back to the dawn of Dungeons and Dragons 30 years ago, gets the royal treatment in Behemoth3's first horde book: A Swarm of Stirges.