Read "The Young Volcano Explorers" by Edward Stratemeyer online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Frank was right, one of the two substitute players to go forth was really Mark, and he had run across the diamond to fill the important position mentioned.
The explanation of this state of affairs is very simple. On being introduced to the player from Rochester Mark had discovered that he had met the fellow before, and a long talk on baseball matters followed. Then Mark was introduced to the captain of the team, who told of the way they were handicapped with only one substitute player, two others having disappointed him, and of the fact that the second baseman was liable to give out at any moment.