Families who loved Top Secret by John Reynolds Gardiner often look for books with a similar feel. These 20 recommendations were selected for their similarity in style, theme, and reading level.

Reach for this book when your child has a big, unconventional idea that adults keep dismissing as impossible. It is the perfect choice for a young dreamer who feels like their curiosity is being stifled by rules or skeptical teachers. Allen, a nine year old boy, decides to prove everyone wrong by attempting to turn himself into a plant through human photosynthesis. While the premise is wonderfully absurd, the heart of the story is about the dignity of a child's intellect and the courage required to follow a scientific hunch to its end. This story balances humor with a genuine respect for the scientific process and the emotional weight of being misunderstood. It celebrates independent thinking and the resilience needed to stand by one's work when faced with authority figures who have lost their sense of wonder. At just over 100 pages, it is an accessible, fast paced read for elementary students that validates their inner world and their capacity for discovery.