Stonehorns are huge creatures, with massive arms and barrel chests. When they stand, they are some 16 feet high. With grey skin, long arms, and a huge belly, the stonehorn crouches on two long frog-like legs. Beady eyes peer out from beneath a broad head crowned by massive horns. The stonehorn's eyes are hollow pools of gray indifference. Their lipless mouths, lined with thousands of tiny, sharp teeth remain clamped shut unless they feed. The stonehorn prefer to dwell in swamps or marshy areas where their height and strength give them an advantage. Scholars maintain that the beast was born of the toads and frogs to which it bears a slight resemblance.

Docile Travelers. The stonehorn travel alone or in pods of 2-4. They lay eggs when they breed; these are dropped in deep pools and left to grow until they are mature. This generally takes 3-5 years. The stonehorn hatches fully grown and hungry.

Leaping Combatants. In combat, the stonehorn leaps much as a frog does, attempting to land upon its victim. They move very quickly for a beast so large, lunging forward on their legs. This allows them to leap great distances, up 40 feet. While crushing a victim, they rend it with claws and fangs. They do not fear death and attack without any morale. They cannot be affected by fear or any similar spell.