1. The monogram murders - HANNAH, SOPHIE; CHRISTIE, AGATHA

2. Closed casket - HANNAH, SOPHIE; CHRISTIE, AGATHA

3. The mystery of three quarters - HANNAH, SOPHIE; CHRISTIE, AGATHA

4. The killings at Kingfisher Hill - HANNAH, SOPHIE; CHRISTIE, AGATHA

5. Hercule Poirot's silent night - HANNAH, SOPHIE; CHRISTIE, AGATHA