Arthur Arestovich. Kind of guardian: 1 year (№ 348701)

'Brilliant,' shook his head, Hermione. - It's not magic, it's logic, puzzle. Many magicians... the girl stared at Potter, not in harmony with the logic, I guess they'd be stuck here forever.
- As, in General, and we don't?
No, of course - surprised Hermione. All we need is in this scroll. Seven bottles: three poison, two wine, one will get us through the black flame, the other a purple. But you know... in place of Snape, I would be in all the bottles had poured the poison, and when I needed to pass through the fire, brought the right potion with you.