The Monolith takes the shape of a large greyish-black flat "brick" that stands upright. It has sharp corners and is unable to be destroyed in any way. Any creature who touches it instantly gains human-like intelligence and sentience. Creatures who already posses such an intelligence and sentience don't gain anything from it. It attempts to repel anything that already is intelligent in multiple ways. For example it emits high-frequency noises to detour intelligent creatures. It does not speak.