The Enormous Egg is set in a small New England town and chronicles the adventures of twelve-year-old Nate Twitchell after a baby dinosaur hatches from an egg laid by a hen in the backyard chicken coop. Well-told, and beautifully illustrated by Louis Darling, the book is a minor classic. Nate Twitchell returns in The Narrow Passage, where he accompanies Dr. Ziemer, a scientist, on an expedition to rural France. There Nate and a young companion discover a boysized cleft in a rocky cliff which leads to a valley lost in time. Both Nate Twitchell books have characters and themes similar to The Trouble with Jenny's Ear.