"It is plain."
"It is?"
"Yes."
"How?"
"If the girl was not his granddaughter Canfield only held the money in trust—yes, held it for a helpless orphan—and being a peculiar old man he was making sure that the fortune confided to him was properly invested and held until such time as the heiress was capable of taking care of it herself."
"Then this explains the mystery?"
"It does."
"And the letter would open up everything?"
"It would."
"And fire has consumed the letter; but matters are simplified."