Echo: Mirror World. Volume 4. Swinging London. Mermaid of Manhattan

Furmil Gratul and Yuri Bodrov find themselves in Echo and are forced to search for their place here. The situation is complicated by the fact that the souls of the recently deceased regularly inhabit Furmil...
A very special agent Furmil gets... a case about the theft of tea in London, which caused a shortage and panic among the preshon population. Meanwhile, in New York, a spirit once again inhabits Furmil, and our friends investigate the death of a sommelier and uncover a horrific conspiracy that begins at the very bottom of Manhattan's sewers.
Fantastic and amusing adventures in the eternal swinging London, as well as in New York - on the surface and underground!