In the book today the children met a man who was a long ago friend of there Grandpa. Back then there Grandpa was named Jimmie now its just James Alden. This book is mostly made for small children but not to small maybe like 4th grade range. But, its a great book to enjoy even if your 40 years old. Well the whole series is mostly the best but my favorite is the first one ever made. I really recommend that one and this one I'm reading now.