Ron had spent much of the past few days away from camp, without offering much explanation; it wasn't the first time he'd been away for an extended period of time. However it was the first time he'd been away while working on something directly related to their true mission without letting Harry and Hermione (and, he supposed, Luna) know about it, and he knew that they would both be furious with him when he finally presented them with his plan, which was incredibly risky and incredibly violent. But it had to be done: they needed solid information on how the Ministry was spreading its drug or potion, and they also needed to rule out the possibility the Dark Bastard had hidden one or more of his Horcruxes there. And now, they had someone who could get them in past security on their side. Of course, it was his plans for what they'd do on the way out that he knew his friends would have the biggest objection to . . .
Still, he'd kept his journal close at hand (and his wand) in case Harry or Hermione needed to contact him, and Harry had done just that. So he'd come back, curious as to what it was Harry needed to pass along.
"Harry, mate, you in here?" Ron called out after stepping into the tent.