Tonks came too on the moth eaten settee in the library of 12 Grimauld Place, Lupin sat on the floor beside her.
"Oh gods, how long have I been out? And how did I get here?" she groaned.
"Not long, about 20 minutes, and side-along apparition. Now, here, eat this." He handed her a large chunk of chocolate. "Personally, I think it's a pretty good cure for everything, but it's particularly effective against Dementor attacks."
"Dementors? Hang on, aren't they nominally on our side? Why did they go after us?" said Tonks, biting into the chocolate.
"A lot of things are nominally on our side, and I don't believe they were ever on anyone's side but their own." There was a weariness to Lupin's tone "But yes, this is a … worrying new development. They were until recently more-or-less under the Ministry's control, confined to Azkaban. But I suppose with Voldemort active there's less incentive for them to play by the Ministry's rules anymore…" he trailed off, side-tracked in thought.

"I suppose you must think I'm a complete wimp now."
"Pardon?" said Lupin, snapping back to the conversation.
"I mean, fainting like that" continued Tonks "it's pretty poor for a trained Auror, screaming like a girlie and passing out."
"You've never come up against a Dementor before, have you?"
She shook her head, they'd always been taught that Dementors were not their problem.
"They're nasty buggers," he said "their whole being is designed to induce negative emotions – despair, fear, anger – so they can feed. It's easy to get panicked, for any common sense let alone training to go straight out your head. So, given you've no prior experience with them, and you weren't expecting it, and you weren't feeling your best tonight in the first place, I think you did exceptionally well."
"You reckon?"
"I do."
The clock on the library mantelpiece struck four.
"God, it's late, I should be getting home." yawned Tonks, clambering off the settee. She wobbled somewhat as she stood, and Lupin jumped up to support her.
"I'm not sure you going anywhere is a good idea" he said "you've had a bad shock and it is very late. Or very early, depending on how you look at it. Anyway, this place has a silly number of spare rooms, we can make you up a bed here. I just think it would be safer."
"Yeah, but if I'm not home in the morning the others will worry. And what about work?"
"I need to get word to Kingsley about that poor sod in the alleyway, so I'll tell him where you are. As for work, we've got a system for people who've had a bad night on watch. Basically, Moody goes and intimidates whoever you report too until they believe you've got a good reason."
Tonks laughed. Right now though, all she wanted to do was sleep, and the thought of trying to Floo anywhere, let alone try and apparate was too much.
"All right. Works for me."