"I could not say," said Elrond,
"but one may guess that your trolls had plundered other plunderers, or come on the remnants of old robberies in some hold in the mountains."
Elrond answering Thorin's question about how Glamdring and Orcrist had come into the possession of trolls.
I don't know what the last three words are, though, because in my book the sentence ends there.
