The Dawn of the World, by C. Hart Merriam, [1910], at sacred-texts.com
The Northern Mewuk say:
Sometimes when passing Too'-cha-mo the stump you hear a noise inside; it is Soo-lek'-ko the Ghost. You had better go right on, for if you stop he might do you harm.
Whenever you see Poo'-ki-yu the Whirlwind whirling the dust around and around and carrying it up into the air you may know that Soo-lek'-ko the Ghost is inside, dancing and swinging round and round. You had better not go near it but keep away.