By profession - detective. Set of 2 books Kuban Fire. Knot

Set of two books, which includes the novels «Kuban Fire» and «Knot».
«Kuban Fire»
In January 1911, a bank was robbed in Novorossiysk. More than a dozen armed robbers burst in, killed the city guard, stole a large amount of money, and... fled into the mountains, fighting off pursuers. They could not be captured. However, the detective agency in Yekaterinodar found out that a Circassian named Kytlesov was involved in the robbery. The arrested bandit gave very unusual testimony. The gang was led by a certain Varivoda. The ataman possesses a mysterious weapon «Kuban Fire» that fires incendiary bombs over long distances. With this weapon, Varivoda plans some terrible terrorist act in the capital of the Kuban region. Danger threatens all of Yekaterinodar…
«Knot»
1907. Prime Minister Stolypin is concerned about the theft of cargo at the Moscow railway junction. The total stolen already amounts to tens of millions of rubles. In addition to thieves, railway workers, detectives, and unscrupulous merchants are involved in the crimes. Stolypin sends Collegiate Counselor Lykov to Moscow with the task of stopping the lawlessness on the railways...