They saw Carson halt in his rather clumsy passage down the gangway, and draw an automatic from his pocket.
There was a quick shot and the banker rushed ahead!
CHAPTER XXI
"I TOLD YOU SO!"
Directly Elmer, Sandy and Mr. Buck heard the banker shouting at the top of his lungs and dashed on toward the mysterious tunnel.
"He'll get his head shot off in there!" exclaimed Sandy.
"I don't care if he does!" declared Elmer.
"Your uncle isn't such a bad old fellow, after all," Mr. Buck exclaimed.
"He has plenty of courage, at any rate!"
"But I don't understand why they don't open fire on him!" exclaimed Sandy. "The robbers certainly were in there not very long ago. We heard the scuffle when they geezled Jimmie."
"Who fired that shot?" asked Mr. Buck.