Rex used to think that active problem solving and keeping secrets from everyone means you're too busy to instigate a fight. The army gives him a new perspective –just what his dad had wanted. However, all too soon, there's a whole new battle he's fighting –like what he's been doing until now can even be considered 'fighting'– and Rex can only hope he doesn't die trying.

Snape has been watching him, and Robin has noticed. Hatred and love aren't all that different, he decides.