Skull Daddy by Stephanie Anne

After a year of hardship, Cass and Jade are ready to put it all behind
them. With the help of Cass’s mother, Vera, they’re finally able to
move into a new home and get that fresh start they so desperately
need. Most importantly, the new environment will be perfect for
raising their rambunctious daughter, Willow.

But when October comes around, so does Skull Daddy. After
displaying this new Halloween decoration in her room, Willow
becomes obsessed with the thing. She cares for her new imaginary
friend, and in return he shares his dark secrets with her.
Surely, this is just a harmless game of make believe. Or is it? Thanks
to their daughter’s never ending obsession with Skull Daddy, and the
horrifying gifts he brings, Cass and Jade are about to find out just
how dangerous a Halloween decoration can be.