LUCINDA'S SECRET: This entry has Mallory, Simon, and Jared learning more than expected about their book. When they visit Aunt Lucy in the nursing home, she tells them that in her youth, she was wrongly accused of having the field guide and warns them to leave the house and get rid of the book, lest they become harassed and charmed like she has been. The Grace kids suddenly realize that their treasured book has been stolen, and after they find a map in Uncle Arthur's library, they come face to face with elves who almost capture Jared and hint that Uncle Arthur may still be alive. THE IRONWOOD TREE: When the Grace children and their mom attend Mallory's fencing competition, Jared spies an odd-looking fellow rooting through Mallory's duffel bag. The problem is, the thief looks just like Jared himself, and when the boy confronts his mysterious double with a knife, iron is known to repel faeries, the "Not-Jared" disappears and Jared winds up almost expelled from school. But when Mallory disappears, a trip to the quarry results in a harrowing meeting with dwarves, a run-in with a googly-eyed "knocker," a scheme to rescue their sister from a strange sleep, and finally, a startling fight over the book. All may look hopeless for the Grace kids, but thankfully, help is right at home.