The Grammatical Investigator in Conan

Q: On the possibility of secret room murder
Detective Ke Xue:
1. Use fishing line, tape, video tape, etc. to arrange the secret room.
2. Use mechanisms, poisons, poisonous insects, etc. to complete the murder in the secret room.
3. Hiding in a secret room after killing someone.
...
Grammatical Investigator:
1. Use mythical creatures to complete the killing.
2. Use voodoo spells to complete the murder.
...
This book is also known as "A Certain Unscientific Investigator", "About My Becoming a Legendary Investigator in the Kexue World", "As a Hawaiian, I have hundreds of millions of skills, so it makes sense", " At the same time, as a secret master, I understand some secrets, which is normal, right?"
Ps: The subject is still a Conan fan