He had the air of a man who having been carefully taught a part, loses his place at the first cue.
"What business is it of yours ?" he asked, rather hesitatingly at length.
"None." Leon made a hopeless gesture of the hand and looked at his book with a face of distress and embarrassment.

Marcos was sorry for him.

He was strong, and it is the strong who are quickest to detect pathos.
"Will you answer me ?" he asked.
And Leon shook his head.
"I have come here to warn you," said Marcos, not unkindly.

"I know that Juanita has inherited a fortune from her father.

I know that the Carlist cause is falling for want of money.