"It's Isa!" asserted Frank Merriwell.
"What does she mean to do?"
"Wait! Look!"
"Merciful goodness!"
Both lads were horrified, for, having succeeded in opening the huge umbrella, the girl suddenly turned, and, with a wild cry, leaped out into space from the edge of the ledge.
"Frank brought the butt of his Winchester to his shoulder, and began to work the weapon." (See page [296])