Introduction

What if buying fuel in space was like an auction—and the person bidding against you is a dying ship full of kids?

Meet Juno, 17. She runs the crypto-economy for a generation ship heading to a new planet. Her job is boring—until a simple fuel deal gets stuck in the network. The reason? A distress signal from an ancient ship called The Drifter. It has 37 children aboard, a failing reactor, and a transaction fee so low that every “validator” in the network is ignoring everyone else to help them.

Now Juno is stuck in a bidding war against a charity case. Raise her fee too high, and her own ship arrives bankrupt. Keep it low, and they run out of fuel. Oh, and the tanker leaves in two hours.

Her only hope? A mysterious miner named Kaito—16, alone on a ship orbiting a neutron star. His time moves nine times slower than hers. He can validate her transaction instantly, but he charges a brutal price: not credits, but her ship’s future trades. And he has a wild plan that might break the entire network.

The Interstellar Gas Fee is a high-speed, mind-bending sci-fi adventure about relativity, blockchain, and two teens who refuse to let rules kill people. It’s The Martian meets Ready Player One—with a dash of Einstein.

If you like clever underdogs, space physics that actually matter, and stories where the hero isn’t a soldier but an economist with a conscience… this one’s for you.

The clock is ticking. The mempool is clogged. And somewhere in deep space, a transaction is about to change everything.

Table of contents:
Introduction
Prologue: The Genesis Block of Proxima b <<<<<< NEXT
Chapter 1: A Transaction Stuck in Pending
Chapter 2: The Relativity Discount
Chapter 3: The Mempool of Deep Space
Chapter 4: Bidding Against Time
Chapter 5: Time-Dilation Arbitrage
Chapter 6: Validators on the Event Horizon
Chapter 7: A Proof-of-Spacetime Consensus
Chapter 8: The Infinite Block Time
Epilogue: Confirmed