Ankheg
Horse-sized, rust-brown insects. They burrow vast, underground warrens into the bedrock.
AC 14, HP 14, ATK 1 bite +4 (1d6) or 1 acid spray (near) +4 (2d6), MV near (burrow), S +2, D +2, C +1, I -2, W +1, Ch -2, AL N, LV 3
“Ankheg” is released under the Shadowdark RPG Third-Party License