thegaypumpingthroughyourveins:

Grindelwald uses the Imperio on Graves. He makes him act exactly as he were before, except – he gradually starts to change little things. Graves gets colder, distances himself from everyone, though the way he behaves work wise is the same. It is progressive, happening in the course of a few months. Nothing brutal, nothing that would raise suspicion. After a while, people stop wondering and start accepting. Grindelwald does this, so that when he finally takes Graves’ place in the MACUSA, no one will notice anything amiss about him – because that’s how he’s already been behaving for quite some time. That’s Percival Graves. No one questions it.