From the publisher's blurb:
Wormskin explores the mythic forest called Dolmenwood, a weird folklore setting for use with B/X or similar tabletop adventure games. Each issue uncovers various elements of this eldritch realm situated on the leafy verges of Fairy, where austere Drunes rub elbows with weird elf-lords and talking beasts, where witches wander skyclad and armed with sinister magicks to bind the spirits of hapless adventurers. Be wary.
Issue 5 includes:
A full revelation (for the eyes of DMs only!) of the secrets and machinations of the Drune, that cabal of sinister sorcerers who haunt the Wood.
Guidelines and random tables for use in Dolmenwood adventures of the hex-crawl mode.
7 hexes around the region known as Hag's Addle.
A boggy adventure locale: the lair of the Hag.
Monsters of the Wood: boggin, brambling, drune, flammbraggyrd.
A bonus PDF containing a septuplet of vivimantic spells, in the possession of a denizen of Dolmenwood.