I know that the Jesuits will get the money if they can.

Because Don Carlos is their last chance in their last stronghold in Europe.

They will get Juanita's money if they can--and they can only do it by forcing Juanita into religion.

And I have come to warn you that I shall prevent them." Leon looked at Marcos and gulped something down in his throat.

He was not afraid of Marcos, but he was in terror of some one or of something else.
Marcos studied the white face, the shrinking, hunted eyes, with the quiet persistence learnt from watching Nature.
"Are you a Jesuit ?" he asked bluntly.
But Leon only drew in a gasping breath and made no answer.
Then Marcos went out and closed the door behind him..