Planting clues. Christie also carefully plants clues throughout her novels that can help readers solve the mystery. These clues can be found in the dialogue, the setting, or even the characters' names.
Character development. Christie's characters are often complex and well-developed, and their actions and motivations can provide valuable clues to the mystery. By paying close attention to the characters, readers can often gain insight into the crime.
Plot structure. Christie's novels are often carefully plotted, and the events that occur are often linked together in a logical way. By following the plot closely, readers can often identify the connections between different events and figure out who committed the crime.
Surprise endings. Christie is also known for her surprise endings, which often leave readers shocked and amazed. These endings are often the result of a carefully planned plot that has been meticulously constructed to lead readers down the wrong path.