This story works because it validates the frustration of being excluded by a sibling while using a giant camel to reclaim control through imagination. It treats invisible companions as real members of the family to mirror how children actually play. Books in this family share themes of sibling rivalry, the blending of fantasy and reality, and underdogs who find creative solutions to loneliness.

Reach for this book when your younger child feels overshadowed by an older sibling's big personality or imaginative world. It is a common struggle for a 'little' to feel like their ideas are less important or that they are being forced to play along with someone else's rules. This story validates the frustration of being the odd one out in a sibling duo while celebrating the moment a child discovers their own unique creative spark. James Howe captures the nuanced dynamics of sibling rivalry and the power of imagination. While Simon uses his invisible dragon to dominate the space, Alex eventually finds empowerment by creating his own friend, a camel named Calvin. It is a gentle, humorous look at establishing boundaries and finding one's identity within a family unit. Perfect for children aged 4 to 8 who are navigating the push and pull of shared play.