He laid his hand on his heart, which was the sign that had been adopted to indicate Mrs.Blyth.Madonna started up, and put her drawing materials aside immediately.
Zack, having thrown away the end of his cigar, gallantly advanced and offered her his arm.

As she approached, rather shyly, to take it, he also laid his hand on his heart, and pointed up stairs.

The gesture was quite enough for her.

She understood at once that they were going together to see Mrs.Blyth.
"Whether Zack really turns out a painter or not," said Valentine to himself, as the door closed on the two young people, "I believe I have hit on the best plan that ever was devised for keeping him steady.

As long as he comes to me regularly, he can't break out at night, and get into mischief.