To the House of Mystery comes Konassos, a sorcerer, with his white cat. Cain one night sees the cat transform into a woman who tells her tale. Isha, Egyptian priestess of the temple of Nu-Ta the Cat-God, is captured and held captive by Konassos. The sorcerer to better control her transforms the priestess into a white cat. Trapped in her feline form, Ra-Na a male cat escorts her but is then poisoned by the sorcerer. She plots her revenge and one day concocts a magical spell that transforms her back into a woman and Konassos into a mouse which she then introduces to Ra-Na's friends.