Bits of Darkness: Caverns (2004)

Publisher Blurb:

"Bits of Darkness: Caverns" is here to bring new excitement to your subterranean adventures by adding short "bits" of description and colorful settings. This is created to be an "on the go" product, which means you don’t need to read the entire work before you can use it. The descriptions are designed so that they can be randomly generated as you play or placed carefully ahead of time. It is written to be of use to both experienced and inexperienced Game Masters, particularly those who (for whatever reason) find themselves short on time or creativity.
This book includes 100 Bits of description, and 20 Shards. The Bits are small pieces that can be stuck in, anywhere a little description is needed, and are numbered so they can be used randomly. Shards are slightly larger, and may depict a particular place or event, or set a feel for an area. The material is also indexed a number of ways to allow a GM to easily find a description to fit a particular circumstance. Each Bit is also provided in index card format for ease of use by Game Masters.

As a special bonus, we have included a brief description of the way caverns are formed and information on the real-world and fantasy aspects of cave exploration. There are also two new Swarms – cave beetles and serpents. In addition, some descriptions are graphically depicted in the excellent interior art by the Carmona Brothers.

"Bits of Darkness: Caverns" uses material from the SRD, but could be used in any fantasy setting with very minor modifications.