這次花岩怪特殊任務《令人毛骨悚然的訊息》官方一開始就有說是限時任務，而今日也公告了任務可以開啟的最後日期為 11/2 凌晨四點，不過看原文意思應該是最後可以開啟這個任務的時間，而不見得是需要完成的時限，但會擔心的朋友還是儘早完成囉。
以下為官方原文內容：
Hi Trainers, don't forget that Professor Willow needs your help to get to the bottom of the strange happenings in his lab! Be sure to talk to him before 1:00 pm (PDT) on November 1 before this limited-time Special Research goes away.
— Niantic Support (@NianticHelp) October 29, 2018