Boom!
The confining hills flung the thunderous echoes in all directions. The same whirr and scream overhead again—and for a third time Don Hale saw where the projectile had landed.
Still the wireless station had evidently not been touched.
"H'm—h'm!" murmured Captain Langlois. "Pas mal—pas mal; not bad—not bad! Same elements, less fifteen. Fire!"
And a few moments later the light spot flashed from view, completely obliterated by another enormous and sinister-looking cloud of smoke.
For a second time the intensely interested Don Hale was in doubt as to the result, yet in another moment he realized that the artillerymen had been successful; for the captain, with a grunt indicative of satisfaction, faced Lieutenant D'Arraing, declaring:
"Enfin, Monsieur le Lieutenant, c'est fait!"
"At last it is done!" murmured Don, translating the captain's words.
"And I guess he's about right," exclaimed Dunstan.
Sure enough—when the slowly-disappearing smoke had lifted the ambulanciers saw that the portion of the building they had looked upon before was no longer in sight, and both could very readily imagine that where it had stood there was nothing but unsightly piles of wreckage and a huge shell-hole.