"How?"
"By blowing up the rock."
CHAPTER XXVI.
M. de Pommerelle could not disguise his astonishment. His eyes turned quickly to the immense block, he measured its height and depth in silence, a smile of incredulity meanwhile playing over his features. At last he turned to the doctor, and said to him—
"I suppose you have a secret store of dynamite or blasting powder?"
"Alas! no," replied M. Desrioux, "you know that well enough."
"In that case?"
"In that case I shall be reduced to have recourse to our ordinary powder."
"And you believe that it is powerful enough to—"
"I do not believe anything at all," interrupted the doctor, "I only hope—voila tout. If you, my dear fellow, have anything else to propose—"