The Dark Waters of the Main

This young beautiful woman, Christina Mathern, is truly in love with the banker Rolff—something private detective Max Wunderlich found out for himself. And it’s not just the tears in her eyes and the tender sadness.

It turns out that two years ago Christina gave Rolff her priceless diamond so he could pawn it and fix his financial troubles. How much loyalty, trust, and desire to protect her beloved from trouble was there in that act!

But she couldn’t protect him.

In broad daylight, right in the center of Frankfurt am Main, the banker is murdered with two point-blank shots. In an instant, poor Christina becomes both lonely and destitute. She has no money except the missing diamond—and even that barely covers her hiring of a private detective.

Soon Wunderlich finds out that the killer is a young, puny blond man in black glasses. That seems like a serious lead. But then news arrives: the banker’s wife, Frau Brigitte, will now inherit ninety percent of the assets of the bank that her late husband ran. The investigation, it seems, is at a dead end…