347K: Chapter book with some illustrations about a possessed plush Easter rabbit, with a human agoraphobic girl as the main character, possibly part of a holiday themed horror series? (Solved!)

The book is a chapter book, probably about elementary school reading level? Along the lines of goosebumps. I think I remember black and white illustrations scattered throughout the book, but not more than four or five I think. I remember some of the details pretty vividly because it was a very weird book, but I can’t remember the name and google searches for it just sort of turn into word salad.
 The main character is a girl who expresses a fear of almost everything (I remember that alien abduction is specifically mentioned as a reason she doesn’t want to go outside?). Her name was Katie or Emma or some other names that can have a lot of different nicknames. Her family goes to a mall where a mysterious/creepy Easter Bunny mascot gives her younger brother a plush Easter bunny, which he loves and she despises. The girl begins to hear “thumping” in the hallway and finds the plush in odd places, leading her to believe that the plush is alive and malevolent. Unrelated to the rabbit, there is a scene where she participates in a class play about the myth of Hades and Persephone and hallucinates that she sees the myth occurring out the window of the classroom.
The back half of the book is fuzzier for me. On Easter night (or the night before?), her brother goes missing (presumably kidnapped by the plush) and she has to go down a rabbit hole in her backyard(?) to follow the plush rabbit and save her brother. Somewhere along the way she finds a table setting with name cards that are all variations of her name, but none of them are the nickname she prefers and I think it’s probably symbolic of something? At some point in this journey she ends up on the moon. I think she has to make a declaration about how she will be brave and face her fears in order for the bunny/the universe (???) to give her brother back to her? I think the lesson learned was that you shouldn’t be scared of the unknown.
The blurb on the back of the book seemed to give me the impression that it was part of a holiday themed children’s horror series, but I don’t recall ever seeing anything that looked like it was from the same series

293A: HANUKKAH* MURRAY

More or less a Santa Claus story for Jewish children celebrating Hanukkah

A Jewish children’s book in which a man (the Hanukkah Murray) flew from one child’s fire escape to the next child’s fire escape in the Bronx, NY (possibly Brooklyn too) on a flying dreidel (bringing gifts?).

*NOTE correct spelling Hanukkah is not known–I guessed at this version for no particular reason

274F: Wordless series of holiday books featuring rabbits

The books I have in mind are a series of wordless picture books that were probably published in the 80s or early 90s. While they weren’t graphic novels or comic books per say, the images were arranged in panels on each page and you’d “read” it by following the story from left to right, top to bottom. The stories centered on a family of rabbits (or I’m pretty sure they were rabbits, they might have been mice) and there were books for each holiday—the ones I remember most vividly was the Halloween book and the Valentine’s Day book. The rabbits were anthropomorphic and were shown putting on coats for fall, trick or treating in a neighborhood, and so on.

I can still picture the books in our elementary school library and so the author’s name must have come closer to the end of the alphabet, since I remember them being nearer to the end of the shelves—possibly in the R, S, T section?

248A: Woodland Creatures’ Christmas

I am looking for a book that was given to my brother in the late 70’s possibly very early 80’s. It was a beautifully illustrated children’s book, similar to Jan Brett. Woodland creatures in a snowy forest, including a hedgehog or porcupine, celebrating Christmas. The end of the book has them finding a candle lit carousel in the woods. Those are the only details that I remember! Have been looking for this book for a long time!
Thank you!