IX Mythos Bestiary species dwelt in the homes of the Outer Gods After The custodian can move through the portal itself millennia of feasting on the leavings and remains of as a means of travel, and thus show up elsewhere, the elder gods, they’ve grown to gigantic size They are suddenly surprising a group of enemies A common use not particularly intelligent, and not have much will for the custodian in battle is to open the portal behind of their own its enemies It then uses its immense physical prowess These alien organisms evolved or originated from to shove enemies through the portal to some special the same branch of life that gave rise to the mi-go place—perhaps a dungeon cell, a canyon, or a walled They are clearly related anatomically to these fungi, prison compound—as its master commands though far more individually powerful There is not just a single custodian but many, and other, even more formidable entities are known to import custodians to take on tasks for them Whether or not they fight to the death depends on the will and instructions of their master The death of a master breaks this binding, as certain rituals Custodians want to have a master, and when deprived of a master, they assiduously seek out those who know the proper ritual of binding The most well-known custodian is that which tends the Library at Celaeno It serves as the “janitor” of that fabulous library and cleans up after the horrendous beings that peruse the knowledge stored therein Appearance The coloration of an abyssal custodian might range from a shiny metallic green, to bronze, to copper, depending on the type of god the creature fed from to reach its mighty size and strength Its carapace is partly made of adamantine and other special materials The thickly armored thorax is sometimes a different color from the softer abdomen The custodian has small delicate flippers so it can tasks requiring fine manipulation An abyssal custodian is about 30 feet long and 14 feet tall It serves and is under the command of Celaeno’s Librarian Abyssal Custodians in Combat The Abyssal Custodian is built for physical strength It is heavily armored and highly resistant to most attacks The abilities which render a custodian the most useful are its vast strength (custodians have been known to shove around starspawn with ease) and also its portal The Custodian’s Portal All abyssal custodians can open up a magical oneway portal to a nearby destination of its choice This destination cannot be further away than about a mile The portal is only visible on the custodian’s end, and nothing is seen at the destination, though detect magic can locate it Sandy’s Notes Whatever its origin, every Abyssal Custodian encountered by player characters is serving a master It always has a master, and this master is some entity even more powerful and dangerous than the custodian In some cases, the master might not be a single being but an entire cult, a college of magic, or some other organization that together is potent enough to hold the custodian’s loyalty Abyssal Custodians are never found simply wandering around or “in the wild.” They are always set to protect and tend some structure or site It might be a gigantic building, as with the Library at Celaeno, or it might be an outdoors location, such as the fabled Monolith of Abbith—a single colossal metallic spire, which a custodian keeps polished and clean of life 295