We were testing the Floo setup at the WWW in Diagon Alley, so I would know how to make deliveries via it, when we were accidentally sent spiraling through the network with no obvious destination. Fred managed to pull us out through another fireplace and we ended up at an old woman's home, though where I couldn't tell you.
To sum it up, the woman turned out to be a suit and there was a giant green snake hiding in it. It bit Fred, after which we Apparated to Fleur Delacour-Weasley's cottage.
George didn't exactly specify how this group works, so I suppose whatever you can use me for. Though, I'm not exactly a good potions maker on a good day. And my transfiguration could use a little work.