Sense and Sensibility by Jane Austen Chapter 12 Page 5

His concern however was very apparent; and after expressing it with earnestness, he added, in the same low voice, — ”But, Marianne, the horse is still yours, though you cannot use it now. I shall keep it only till you can claim it. When you leave Barton to form your own establishment in a more lasting home, Queen Mab shall receive you.”

This was all overheard by Miss Dashwood; and in the whole of the sentence, in his manner of pronouncing it, and in his addressing her sister by her Christian name alone, she instantly saw an intimacy so decided, a meaning so direct, as marked a perfect agreement between them. From that moment she doubted not of their being engaged to each other; and the belief of it created no other surprise than that she, or any of their friends, should be left by tempers so frank, to discover it by accident.