Questions abound when a little boy and his grandfather visit a museum exhibition devoted to the Tyrannosaurus Rex: What size was the egg? Was the nest in a tree? Did he hunt with his friends? Grandpa patiently answers every question but frequently has to respond with “We don’t really know. It was millions and millions of years ago.” In addition to the conversation between the child and his grandfather, additional information is provided in a brief captions that offer further explanation. Each strand of narrative is set off in a different kind of typography so that readers can easily distinguish which character is speaking. The story ends with the two looking for more answers in books, as Grandpa tells the boy: “Maybe one day we’ll really know... Maybe we’ll know what’s really true. The person to tell us might just be YOU.” Boldly colored, stylized illustrations show plenty of sharp-toothed T. Rexes to satisfy young dinosaur enthusiasts. Although the book is just 32 pages long, it includes a complete index for quick reference to information in the text. (Ages 2–5)