Arthur M. Winfield, The Rover Boys on Treasure Isle (1909)
“ Closer and closer to the steam yacht drew the two rowboats, until it looked as if the Rainbow would surely be boarded by the enemy. Then of a sudden there came a cloud of smoke from the deck of the steam yacht, followed by a stream of sparks which went whizzing just over the rowboats. Then followed more sparks, and balls of fire, red, white and blue. "What in the world are they doing?" murmured Captain Barforth. "They are shooting off something, but it is not a gun or a cannon," answered Mr. Rover. "Hurrah! I know what it is!" cried Tom. "Good for Fred and Hans! ”
