50 Fathoms Wiki

Mulak-tos are pools filled with murky, acidic blood scattered about Torath-Ka.

The pools are charged with the blood of non-ugak sacrifices. When a dozen sacrifices have been made, an ugak shaman can touch the pool’s altar and make a pact with his dark gods.

If he is successful in his endeavours, a giant version of the altar’s guardian (a giant monkape, tidal snake, or giant
spider) comes to life. In extreme circumstances, one of the Red Men's Walking Gods is born.