Finally, it's an easy task: a wife accidentally killed her husband, confessed, and all the witnesses corroborated her statement. But wait. . . perhaps the investigation will lead to new mysteries, perhaps the evidence will reveal an unexpected surprise, turning the case upside down. So, who is the real killer? And what is the mystery of Task 23? Wait, dear reader, this isn't all in this issue. Another case will begin here, but it won't end until. . . Why not read on for yourself. . . The mystery of the killer. . . ? ? ? ! ! !