Of course one cannot play at marbles on board ship, but one can play WITH them. They had been a great comfort to Dick on the voyage. He knew them each personally, and he would roll them out on the mattress of his bunk and review them nearly every day, whilst Emmeline looked on.
One day Mr Button, noticing Dick and the girl kneeling opposite each other on a flat, hard piece of sand near the water's edge, strolled up to see what they were doing. They were playing marbles. He stood with his hands in his pockets and his pipe in his mouth watching and criticising the game, pleased that the "childer" were amused. Then he began to be amused himself, and in a few minutes more he was down on his knees taking a hand; Emmeline, a poor player and an unenthusiastic one, withdrawing in his favour.
After that it was a common thing to see them playing together, the old sailor on his knees, one eye shut, and a marble against the nail of his horny thumb taking aim; Dick and Emmeline on the watch to make sure he was playing fair, their shrill voices echoing amidst the cocoa-nut trees with cries of "Knuckle down, Paddy, knuckle down!" He entered into all their amusements just as one of themselves. On high and rare occasions Emmeline would open her precious box, spread its contents and give a tea-party, Mr Button acting as guest or president as the case might be.