Usually performed under the ground, ideally in a cavern or grotto, or in a temple dedicated to the Great Old One. An offering must be provided while the caster performs a guttural ritual.

For each such spell, the caster must sacrifice 5 POW. The chance of successfully contacting the deity is equal to half the caster’s (reduced) POW. If the roll succeeds, the deity or some aspect of it will contact the caster in a semi-friendly manner after a few game hours or days. The deity is unlikely to give non-worshipers anything of value. If the deity is bored or offended the god will likely squash the caster, or
drive him or her insane, and so get some inhuman pleasure from the situation