Read "The Great Airport Mystery" by Franklin W. Dixon online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Caution prevented the Hardy boys from going closer to the fallen plane.
They had not been seen by Ducroy or the others, and they now realized that it would be folly to play into their hands at this moment. They were outnumbered and they saw that they might easily be disarmed if they took reckless chances. Frank suddenly halted and grasped Joe by the arm.