Mrs. Errol is a character from the novel "The Man Who Knew Too Much" by G.K. Chesterton. She is depicted as a devoted mother who is deeply concerned for her son, Hugh Errol. Her character embodies the themes of love and sacrifice, showcasing the emotional struggles faced by a parent. In the story, Mrs. Errol's actions and decisions significantly impact the plot. Her relationship with Hugh highlights the bond between parent and child, illustrating the lengths to which a mother will go to protect her family. Mrs. Errol's character serves as a representation of maternal strength and resilience.