The second blow of the gong

The owner of the house was found in his room. All the doors and windows in the room are tightly closed, and a weapon lies next to the body. Suicide? Probably, all the households and representatives of the authorities would have thought, but by the will of the chance for the dinner in the house where this misfortune happened, Erkul Poiro was invited. He has to solve the secret of the locked room ...
This book included eight stories by Agatha Christie. In some of them, the reader will meet with the favorite detectives of Queen Detective - Harkul Poirot, Parker Payne and Harley Kin. Two more stories are completely independent, they clearly demonstrate how a complex detective plot can be developed in such a small volume of text