AUTHOR'S NOTES
THE CICADA 3301 really exists and is known as the biggest mystery on the internet, obvious not in the context of this detective novel, which is a mere fruit of the author's mind, in the same way as the names of the characters, if there is any resemblance to real life, understand as simple coincidence.
The places in the city of London mentioned here were narrated with the intention of describing that reality, in the most reliable way possible to the author. If there is any inconsistency, and the same is notified by the readers on duty, corrections will certainly be made in future editions.