This book provides discussion that some younger readers may not comprehend about complex time travel contrary to what is known as "time travel". Readers who have read A Wrinkle in Time or seen reruns of the $20,000 Pyramid will find this familiar, funny, and heartwarming. The main character does develop a romantic intrest, but it is in a realistic, feeling-not-looks way. They do share a kiss or two, but there is no description other than "He kissed me. Then I kissed him back." The violence is not descriptive. Overall, this is a book to be read and reread over and over.