Whereupon the other three burst into peals of laughter at her earnestness, and couldn’t sober down even at the prospect of scandalizing the bookseller as much as they had the crabbed old stationer. But the bookseller proved to be a brisk young fellow with an eye for trade, and no national prejudices. He sold them two paper-covered guides to the region around Oban, which, he assured them, would tell them all about Flora Macdonald, and all about Dunstaffnage castle as well. He too had post-cards, and Babe bought some, “on principle,” she explained, because he was so very agreeable to Americans.