Final answer:
Without specific context or additional information provided in the question, it's impossible to determine the exact moment when Mrs. Higgins takes charge in the narrative.
Step-by-step explanation:
The question seems to be about a specific moment in a story or play when a character named Mrs. Higgins takes charge of a situation. However, none of the text excerpts provided directly answer this question. As such, I do not have a sufficient context to determine when Mrs. Higgins takes charge. The excerpts mention characters such as Mrs. Linde, Mrs. Peters, and Mrs. Hale, but none pertain to Mrs. Higgins and her role in the narrative. Therefore, it's impossible for me to accurately pinpoint the moment Mrs. Higgins takes charge without additional context or information on the narrative in question.