Adverbs modify verbs, adjectives, and other adverbs. Halloween is a noun, so an adjective is needed to describe it. Scary, spooky, and dark are some adjectives that can describe Halloween.
scary and mysterious
spookily, meanacingly,mysteriously, eeriely,
Spirit Halloween is pretty good.
Some good adverbs for "said" are softly, confidently, sarcastically, and hesitantly.
Adjective
Good adverbs are adverbs that are good.
Books that have good ideas for crafting on Halloween are Good Housekeeping, Easy-to-Do Halloween crafts, Enchanted Learning and a Ghostly Good Time are all good books.
The Seance is a good book about seances it is an excellent read however it is not based on Halloween and or takes place on Halloween.
If you are looking for good places to find Halloween crafts, the best place to look on is crafts.kaboose.com/holidays/halloween/
Late, well and very are just a few adverbs that don't end in -ly.
For Halloween I always prefer something scarier :)