Most children’s stories teach kids that heroes are born, not made. They’re chosen. They discover powers. Something dormant inside them wakes up at exactly the right moment, and the world reorganises itself around their specialness. It’s a formula that’s produced some genuinely great stories. It’s also produced a quiet distortion about what courage actually looks like in reality.
Ruben and the Curious Cosmonaut is working against that distortion.
A R Marchant’s debut doesn’t hand Ruben anything. He’s not the fastest, not the loudest, not the one you’d pick. He starts in a costume shop filled with old fabric and fading light, in the company of Baba Jaan, a steadying presence who asks nothing dramatic of anyone. It’s an ordinary beginning, and Marchant seems quite deliberate about that. The ordinariness isn’t something to overcome. It’s the whole point of the story.
The inciting object is a battered space helmet, discovered and eventually pulling Ruben through into the Yard: a drifting sky of broken structures, floating machinery, fragments of systems nobody fully understands anymore. What’s immediately clear is that this world doesn’t reward confidence or force. It rewards attention. Hesitation has physical weight here. A wrong move doesn’t just fail, it damages something already fragile.
That’s an unusual set of rules for an adventure story aimed at children.
Ruben is guided by Sparky, glowing and perceptive, and the Custodian, a pragmatic mechanical figure who functions as guardian of the system. Together they’re working to restore the Cosmic Engine, a structure that doesn’t just power things but maintains distant stars, keeps light and connection intact across enormous distances. When it starts to fail, it’s not machinery that breaks down. It’s meaning.
The tasks Ruben is given look small. Realign mirrors. Recover a fractured crystal. Restore balance to a mechanism that resists anything careless. But each one asks for something harder than strength. Restraint. Real observation. The willingness to proceed when you’re not certain you are capable and nobody’s watching to confirm you made the right call. At one point he has to block a destructive beam using nothing but positioning and timing. At another, he has to wait, genuinely wait, for a failing mechanism to respond rather than forcing it open.
These are not the moments children’s fiction usually lingers on. Marchant lingers on them.
Heroism in this book isn’t an identity. It’s a practice. A discipline of moving carefully through something fragile and complex without letting care slip. Ruben doesn’t save anything by being exceptional. He saves it by paying attention and by choosing, repeatedly, to act carefully when doing nothing would have been perfectly easy. The story reaches its turning point not in triumph but in alignment: the Engine comes alive, a distant star burns steadily, and the success feels collective, quiet, genuinely earned.
When he gets home, nothing looks different. The shop smells of polish and dust. Baba is there. The small routines are unchanged. But Ruben sees differently now. He can make out the hidden structures beneath ordinary life, the unseen efforts, the small decisions that make stability possible. It’s a low-key revelation. Almost invisible if you read quickly.
Children are presented with a constant diet of spectacular heroism. Chosen ones, destiny, powers that arrive from nowhere. What this book quietly offers is a hero who looks like most of us actually look. Uncertain. Careful. Brave in a way that doesn’t perform itself. That’s a quietly radical thing to put in front of a child.
But it doesn’t only belong to children. Ruben’s real act of courage isn’t fixing the Engine. It’s admitting, again and again, that he doesn’t fully understand it and proceeding anyway. Staying open. Staying careful. Letting vulnerability be part of how he moves rather than something to overcome before he can start. Something most of us just forgot, maybe that’s why the book will stay with you.
Ruben and the Curious Cosmonaut is available now from Amazon
https://amzn.eu/d/07ekPNol
www.andymarchant.com
