“Papers in bureau,” he wrote; “lock all in my desk. Mention to no one.”
“Am I to put them in your desk?” asked Caroline, bewildered as to his intentions, and finding it hard to read the writing, as he went on—
“No word to anyone!” scoring it under, “not till one of the boys is ready.”
“One of the boys!” in utter amazement.
“Not as a chance for himself,” he wrote, “but as a great trust.”
“I know,” she said, “it is a great trust to make a discovery which will save life. It is my pride to know you are doing it, my own dear Joe.”
“It seems I am not worthy to do it,” was traced by his fingers. “It is not developed enough to be listened to by anyone. Keep it for the fit one of the boys. Religion, morals, brains, balance.”
She read each word aloud, bending her head in assent; and, after a pause, he wrote “Not till his degree. He could not work it out sooner. These is peril to self and others in experimenting—temptation to rashness. It were better unknown than trifled with. Be an honest judge—promise. Say what I want.”
Spellbound, almost mesmerised by his will, Caroline pronounced—“I promise to keep the magnum bonum a secret till the boys are grown up, and then only to confide it to the one that seems fittest, when he has taken his degree, and is a good, religious, wise, able man, with brains and balance, fit to be trusted to work out and apply such an invention, and not make it serve his own advancement, but be a real good and blessing to all.”
He gave her one of his bright, sweet smiles, and, as she sealed her promise by a kiss, he took up the slate again and wrote, “My dear comfort, you have always understood. You are to be trusted. It must be done worthily or not at all.”