37 Year Old Kindaichi Case Files - Vol. 8 Ch. 59 - Poltergeist Mansion Murder Case (File 6)

[MangaDex]

 

[Gent]

Whoever is changing the titles to the Japanese names, stop.

 

[HoneyPopper]

Shiratori is totally the culprit in my opinion. They way she cut off the conversation and directing everything? Totally her.
as for the self-lighting candles

Spoiler

a candle wick dipped in liquid phosphorous will spontaneously burst into flame when it dries. The real trick is the timing.