Happy Jack in "Sammy Jay Upsets Happy Jack"

As for Happy Jack, he worried for a while, but as Shadow didn't come, and there was nothing else to worry about, little by little Happy Jack's high spirits returned, until he was as happy as ever. And now, though he has had many adventures since then, I must leave him, for there is no more room in this book. Perhaps if you ask him, he will tell you of these other adventures himself. Meanwhile, bashful little Mrs. Ryder Rabbit is anxious that you should know something about her. So I have promised to call the next book, "Mrs. Ryder Rabbit."