Black orchids

Niro Wolfe, a passionate collector of orchids, a big gourmet, a beer lover and a great detective, almost never leaves the house. He unravels all crimes on the basis of the facts that Archie Goodwin collects, his charming, ironic assistant with excellent memory.
Two cases of Niro Wolfe are associated with black orchids. In the first, he is ready to prove the innocence of the flower grower, but as a fee as a fee asks all the black orchids grown by that, and in the second he sends these flowers to the funeral of a woman whose murder is investigating ...
The collection includes two more novels in which the action takes place during the Second World War. Wolf and Archie, now Major Goodwin, on the instructions of the government, are investigated by cases related to the leakage of important state secrets