From publisher blurb:
The fourth issue of Carcass Crawler — the official Old-School Essentials zine! Each issue is packed with new material for your games, including new character classes and races, new spells and magic items, new monsters, optional and expanded rules, referee advice, previews of in-development products, short adventures, and more!
In This Issue
New classes: Three new character classes. The arcane bard, the halfling hearthsinger, and the halfling reeve.
Deities of Law, Neutrality, and Chaos: Four example religions, including new spells available to adherents.
Terrors of the dark: 8 new monsters of the deep places of the earth.
Grimoires: A selection of arcane grimoires and new spells.
Strange brews: Additional details on brewing, purchasing, sampling, and describing potions.
Adventure: A short adventure set in the lair of a shadowmancer.