ʜᴀʟʟᴏᴡᴇᴇɴ ꜱᴘᴇᴄɪᴀʟ A Seventeen Book someone goes "missing" and then makes their members go through a bunch of creepy tasks to get them back. when they complete it, its not as they expected it to end "Trick or Treat" "SAVE OR SURVIVE" Started: Oct 11th, 2023 Finished: Nov 1st, 2023