“How you known dot, Efy?” “Why, see um larf at ye! Can’t you tell by the way they act?” But the Dutch boy was not satisfied, and it worried him greatly to think he might be visited by a ghost that night. He insisted that he would not sleep in the Summerhouse unless provided with a gun. After supper however, Kenneth took Hans aside and explained that a bullet from a gun or a charge of grapeshot and canister out of a cannon would not have the least effect on a ghost, but that ghosts could not stand water. “In the room where you are to sleep to-night,” said Kenneth, “there is a hose pipe with a stopcock nozzle. All you need to do is take the nozzle end of the pipe to bed with you. If the spook appears, point the nozzle at him, turn the stopcock, and let him have it. He will be knocked out in the first round.” “Vos dot der lefel on?” asked Hans, suspiciously. “That is strictly on the level,” assured Kenneth, “Vale, den I done dot. Let dot ghost come, und I vill gif him der greadest path vot I efer got.” In the meantime, Frank Merriwell had taken Ephraim aside, and was saying: “Gallup, you must scare the wits out of that Dutchman to-night. You are the tallest one in the party, and so you must wrap yourself in a sheet and play ghost on him. St. Ives is going to fix it so we can all hide behind a curtain in one corner of the room and see the fan. Will you do the trick?” “Course I will,” nodded Ephraim. “I’ll skeer the Dutchman aout of his senses, b’gosh! Won’t it be heaps of fun!” “Sure it will,” nodded Frank. “You must strip yourself of all your clothes, so you will look as gaunt as possible, then wrap the sheet around you and stalk in on Hans. He’ll have a fit.” “Haw! haw! haw!” laughed the Vermonter. “I know I’ll die of larfin’ to see him! Haw! haw! haw!” So it was arranged, and Frank hastened to tell the other boys. “This is where Ephraim gets taken in,” smiled Merry. “Kenneth St. Ives has arranged for him to turn the hose on the spook, if one appears. If Hans is not too frightened to do anything, he’ll give Ephraim the surprise of his life. With nothing but a sheet over him, the water from the hose will go through to Gallup’s skin the first squirt, and we’ll be where we can see the fun.” With no small difficulty Hans was induced to sleep alone in a room of the summerhouse. At one end of the room was an alcove that served as a wardrobe. In front of this alcove was a curtain. Kenneth arranged it so that the hose attached to the private waterworks of Springbrook Farm was run in at the window of the Dutch boy’s room, and a full head of pressure kept on. He showed Hans how to turn the stopcock and let the water fly at the spook. Just before the party was ready to retire Frank came upon Gallup and Dunnerwust, who were talking together and laughing in an odd manner. “Here!” exclaimed Merry, “what are you fellows chuckling over?” He was afraid the Dutch boy had told Ephraim about the manner in which he expected to vanquish the ghost.