The Killer Breathes in the Dark

"Ahem, ahem, ahem!"

Lin Yu waved his hand and said, "Allow me to introduce myself. I'm Lin Yu, the owner of a detective agency. My main line of work is taking on clients and helping them solve cases! The cases are all kinds of strange. I've heard of things you haven't, and seen things you haven't. You might think a case is far away, but sometimes the culprit is right beside you. And is it science or the supernatural? That's something I can't decide either! But I've always wanted to find the answer by solving cases. Why do some people believe in the supernatural and become so obsessed that they do things they can never take back, with no way back and only judgment awaiting them?"

"If you're curious about a culprit's personality and psychology, come on in and take a look. Why is the book called The Killer Breathes in the Dark? Why not take a guess... There's already a clue above! Easter egg!"

"The latest case is set in a hospital. You all know what I mean, right?"