"You all know that on the night I lost my powers and my body, I tried to kill him."
...
".... I was ripped from my body, I was less than spirit, less than the meanest ghost. . . but still, I was alive. What I was, even I do not know... "
...
"...Nevertheless, I was as powerless as the weakest creature alive, and without the means to help myself...for I had no body, and every spell that might have helped me required the use of a wand. . . ."... "Only one power remained to me. I could possess the bodies of others."
Para responder a segunda questão, foi explicado.
Rabicho encontrou-o na floresta albanesa, onde ele escondeu todos esses anos (mesmo lugar que ele recuperou Diadem Corvinal muitos anos antes, quando Gray Lady e Barão Sangrento morreu sem recuperá-lo).
(GoF again) ... "I settled in a faraway place, in a forest, and I waited".
e, falando de Wormtail:
He sought me in the country where it had long been rumored I was hiding . . . helped, of course, by the rats he met along the way.
... His filthy little friends [rats] told him there was a place, deep in an Albanian forest, that they avoided...
E, claro, descobrimos por que era a Albânia em Relíquias da Morte quando Harry fala com Gray Lady sobre o Diadema Perdido de Ravenclaw:
“And . . . and the diadem?”
“It remained where I had hidden it when I heard the Baron blundering through the forest toward me. Concealed inside a hollow tree.”
“A hollow tree?” repeated Harry. “What tree? Where was this?”
“A forest in Albania. A lonely place I thought was far beyond my mother’s reach.”
“Albania,” repeated Harry. Sense was emerging miraculously from confusion, and now he understood why she was telling him what she had denied Dumbledore and Flitwick. “You’ve already told someone this story, haven’t you? Another student?”
...
So Voldemort had managed to wheedle the location of the lost diadem out of the Gray Lady. He had traveled to that far-flung forest and retrieved the diadem from its hiding place, perhaps as soon as he left Hogwarts, before he even started work at Borgin and Burkes.
And wouldn’t those secluded Albanian woods have seemed an excellent refuge when, so much later, Voldemort had needed a place to lie low, undisturbed, for ten long years?