Grimlock ♥ Ultra Magnus

I'm not into the Sentry as a character, but was lured in by the promise of Lemire's writing.   And I wasn't let down.   While this is a mini-series, I found each issue to be full of twists and turns. 

The Sentry brings the Void with him, keeping the Void at bay by retreating to a magical world inside his mind where Bob Reynolds is the Sentry.   In the real world, he doesn't turn into the Sentry at all anymore.   And this compartmentalization of identities allows him to live half a live in each world. 

But will that be enough, especially when someone steals the device that allows him to keep his identities separate via these two separate lives?   Who would know how to do it, and then be willing to steal it?