In ancient cities, the peace of citizens was protected by four successively changing guards. But in Rome there was another guard - a secret one...

“The Fifth Guard” is the final, fifth book in Dmitry CHERKASOV’s “INVISIBLE” series.

A group of employees of the external surveillance service of the St. Petersburg FSB Directorate carries out operational activities on the development of criminals suspected of smuggling drugs and weapons, and the preparation of a terrorist attack.

Readers will again meet Lehelt, Morzik, Blob, Cannon, Kingfisher and others, and read about their exciting adventures.