Read "Pioneer Boys of the Gold Fields" by Edward Stratemeyer online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
A few days later Mark was working hard at the bottom of a deep hole, with the hot sun blazing down upon him when he suddenly felt queer in his head. He staggered and leaned up against the dirt.
"What's the matter, Mark? " questioned Si, who was working with him at the time.