End of the Line by Nicky James

When a boy who has everything meets a boy who has nothing, life will never be the same again.
Leopold Van Eschen is in big trouble. All the money in the world won’t save him from what he’s done. On the run, desperate to get away, Leo finds himself seeking help from a bunch of vagabonds he meets in a railyard.
Leo has no idea his whole world is about to change.
Killian has been homeless and living on the fly for nine years. The closest thing he has to family is a group of fellow freight-hoppers. With the wind at his back and the whole world stretched out before him, he’s happy. It’s not an easy life, but you can’t put a price on freedom.
A chance run-in with a wealthy stranger turns Killian’s world upside down. Leo’s cute and desperate to get away. Without knowing a thing about him, Killian and his friends help Leo escape the city.
It doesn’t take long before Killian realizes the boy he’s slowly falling for has dark secrets.
Who is Leo running from?
What happened to make Leo want to give up a life of wealth to live the life of a vagabond instead?