"Oh and hey, I'm stopping by tomorrow night, just to thank you in person. So be prepared for my visit."
- Unknown Caller (Undying)
Undying is a returning character and the main antagonist in "Treasure Island: Mouse-Napped".
Undying resembles his FNaTI appearance, except he is darker red, and he is covered in dirt and dust.
On Night 4's phone call, Undying implies that he's been the Unknown Caller the entire time, by saying "I'm stopping by tomorrow night". It is possible that Undying is also responsible for the creation of the Experiment Suits.
Undying can access all entrances, the two industrial doors, and the hole. If Undying tries to come into the office through the doors, the player must close the doors. If Undying tries to come through the hole, the player must shine their flashlight at him.
|*Jumpscare*||Catching the player.|