Behold, Here's Poison

"Behold, Here's Poison" is a detective fiction novel written by Georgette Heyer, first published in 1936. The story is set in a classic English country house, with all the elements of a classic murder mystery. Please note that the following is a fictional summary of the book:
In "Behold, Here's Poison," the wealthy and cantankerous old patriarch of the Penherwood family, Mr. Nathaniel Herriad, invites his extended family to his country estate for a weekend gathering. Despite the gloomy weather, the family members assemble with their own hidden agendas and longstanding resentments towards each other.
Among the guests are Mr. Herriad's niece, Mavis, who is a beautiful and ambitious young woman, and her stepbrother, Gregory Matthews, a quiet and scholarly man. The other family members include the spinsterish Miss Harriet, the sharp-tongued Mrs. Matthews, the flirtatious cousin Ambrose, and several other colorful characters.
As tensions rise during the weekend, it becomes apparent that not everyone is there just for a peaceful family reunion. Hidden animosities and old grudges resurface, and it becomes evident that the old man has not only amassed a fortune but also collected a fair share of enemies within his own family circle.
Late one evening, tragedy strikes. Mr. Herriad is found dead in his study, poisoned. The police are called in to investigate, and Inspector Hannasyde arrives on the scene. He soon realizes that there are no shortage of suspects, each with a motive to do away with the disagreeable old man.
As the investigation unfolds, Inspector Hannasyde finds himself entangled in a web of secrets, lies, and conflicting alibis. Family members begin to reveal their own shady pasts, making it increasingly challenging to determine the real culprit.
In the midst of the investigation, unexpected romances bloom, and loyalties are tested. Inspector Hannasyde must navigate through the intricate family dynamics to uncover the truth behind the murder and bring the guilty party to justice.
"Behold, Here's Poison" is a delightful and witty whodunit, filled with Georgette Heyer's trademark charm and clever plotting, keeping readers guessing until the very end.