Cryptid Serial Murders Case

Show spoilers/Hide spoilers

* Billie Za Gozzila (attempted)
* Chelsea Gadd
* Alissa Beaumont (attempted)
* Night Bran Jr. (attempted)

The **Cryptid Serial Murders Case** is a serial murder case that occurs at BLUE.

It is the 26th main case in the *Ron Kamonohashi: Deranged Detective* series, and the second case of part 2.

## Overview

After Ron, Toto, Night, Alissa, Hutter, Marsh, Udy, and Billie were seemingly called to BLUE by Aimee, they discover her corpse in her office; she was shot in the back and died about two to three hours ago. Due to the circumstances, Ron and Toto believe that Aimee's murder is a "declaration of war." Shortly afterward, the guard arrives to inform everyone that the emergency isolation system is running which means they are trapped in the school.

While Ron and Toto investigate, the students scatter through the school. Billie's monkey, Minigozzi, then guides them to the courtyard where they find Udy's body. She lies in the middle of the courtyard, and only one set of footsteps leads to her. She seems to have been "gouged with some massive weapon," and a page of a book was placed next to her: "Chapter 1 The Messenger from the Sky Wyvern." Udy died between 20 to 30 minutes ago after she told Alissa she wanted to go to the bathroom.

### Further developments

Afterward, Ron, Toto, the guard, and the students search for Billie who is missing. They look for her in a secret underground room. She is not there; instead, they find Chelsea Gadd, a student who was recently suspended because of her obsession with the M. Family. She identifies the wyvern page as part of an M. Family book.

At night, Minigozzi brings Toto, Ron, Hutter, and Night to the locker room. Billie has been tied up and put in a water-filled locker after being attacked and knocked unconscious from behind when she was looking for her cat and rabbit earlier. Hutter manages to open the lock, and they can rescue Billie. The culprit put a page inside the locker: "Chapter 3 The Terror within the Water Merman." One of the locker's hinges is broken, and there are long, white hairs in the door's stopper; they belong to neither Billie's rabbit, monkey, nor cat.

Meanwhile, Chelsea is killed. Curiously, although her body is found on the roof, she died by falling; she fell feet first as her heel is broken and her legs were vertically dislocated. Next to her is "Chapter 2 The Giant's Awakening Cyclops." There are fresh marks on a pole and a bloody body bag on the roof. As there are no signs on the ground of someone having fallen, the crime must have happened on the roof.

Additionally, the guard station has since been broken into. Someone cut the sensors that detect exit and entry. Later, after Alissa runs away, Ron, Toto, and Night discover that the timetable instructor's train was moved; it has since cooled down. Across two floors, they also find four carve marks on pillars and five on windows.

## Trivia

* The case is known in-universe as the "BLUE Serial Murders."
* After the release of Chapter 109, an event to guess the culprit from among the six suspects—Alissa Beaumont, Night Bran Jr., Billie Za Gozzila, Hutter Horn, Marsh Leipley, and the guard—was started. Three participants who have guessed correctly will receive a signed poster of the full Volume 12 cover. The event ran from Oct. 3 to Oct. 7, 2023.

Event announcementThe suspects
## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 100, pages 4-17
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 6-7
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 2-5
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 9-10
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 15-21
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 102, pages 9-19
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, pages 7-11
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, pages 17-21
9. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 104, pages 8-20
10. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, pages 9-10
11. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 107, pages 14-20
12. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, page 10
13. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, page 12
14. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 107, pages 21-22
15. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 108, pages 7-9
16. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 108, pages 12-14
17. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 108, pages 18-19
18. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, page 5
19. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, page 3
20. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 110, pages 7-9
21. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 115, page 16
22. ↑ Cryptid Serial Murders Case Event: Info — Akira Amano on Twitter
23. ↑ Cryptid Serial Murders Case Event: Announcement — Akira Amano on Twitter