Письмо от русалки

Christian Tudel's dream has come true: his debut novel "The Mermaid" was published with great success. But why is he depressed and withdrawn as never before?

His friend Erica Falk found out that for some time he began to receive strange, frightening letters. Meanwhile, Magnus, Tudel’s best friend, disappears without a trace, and a little later he is found on the coast, killed and frozen into the ice.

Erica's husband, detective Patrick Hedström, takes on the investigation of this terrible case. He found out that three of Christian's closest friends, including Magnus, had received the same threats. But the survivors flatly refuse to answer all questions.

What caused their strange silence? And what secret do they keep so stubbornly, without fear for their own lives? We need to find the solution before it's too late...