Trick or Treat, Brothers

Aurora, Gatekeeper of Halloween, reborn as a newborn countess's daughter. With her telepathic pumpkin lantern and Coalball, a grumpy male black cat who grows, shrinks, and shadow-portals, she must find her five lost brothers. Trick or treat. Deny your sister, taste my thunder. Collect five pumpkin badges, open the Gate of Halloween, save Mother, and destroy the Dark Sorcerer.