Before he became known to the world as Tom Swift, Jr., a much younger Tommy Swift wanted to invent something that would change the world. His target? Something to help win the war in Europe. Little did he or even his famous inventor father, Tom, Sr., realize that his first major invention would prove to be a game changer. But the young inventor could not know how vital his work turned out to be because nobody trusted an eight-year-old to keep the secret. Even after the war he was not told right away, and so he set out to make something that would work, something that proved to save the spirit of Christmas in Shopton for a few of the little children, but mostly for his younger sister. This book contains the stories of his first four inventions along with a short story about how Tom foiled Sandy's prying eyes and sticky fingers!