The excellent Adventure Path module The Skinsaw Murders by Richard Pett, introduces a few adventure seeds, one of which involves Brinestump Marsh and the local rumors of Old Megus the Swamp Witch. This document is a series of encounters spawned from that short, enticing description of this unused locale. The encounters presented here are appropriate for a party of four 4th-level characters. Be sure to grab the Brinestump Map Folio for additional maps to use with this adventure.
View the entire adventure or download a PDF here (at the archives).