Abstract

The latest shocking dark heroine mystery!

17 people were poisoned at a banquet hall of a luxury hotel.
One of the victims, Koichi Hisaka, a member of the Diet, was clutching a piece of paper marked "1".
An analysis of security camera footage showed "Sayuri Udo," who was involved in a series of bizarre murders, escaped from a medical prison, and was wanted for murder.
In addition, a series of new incidents occur, including the bombing of a large bus and the arson murder at a junior high school ...!
At the crime scene, there is always a mysterious number tag and a trace of Sayuri Udo left behind.
Sayuri was carrying out her murderous acts by the means instructed by a certain woman, but the investigation headquarters has no way of knowing it, and the death toll continues to rise, bringing the total number of victims to 49...

The third dark heroine mystery by a popular author who, in his eleventh year, continues to deliver brilliant twists and turns!

Author’s Information

Born in Gifu Prefecture in 1961, he won the 8th "This Mystery is Amazing!" Grand Prize for "Sayonara Debussy" and made his debut the following year.
Since then, he has continued to write energetically, focusing on mysteries.
His many recent books include "Silver Age Detective Agency: Shizuka Grandma and the Care-requiring Detective 2," "Concerto of Revenge," "Boundary Line," "Rasputin's Garden," "Hippocrates' Regrets," and "Noh Masked Prosecutor's Excitement," among others.