"We've got to set a trap!" exclaimed Will.
"How?" asked Grace.
"Well, evidently he's been in the habit of coming around the tent to get scraps of food. We'll leave plenty out to-night, and also some oats. Then we'll watch, and when Prince comes I'll catch him."
The boys voted this plan a good one. They went over to Mr. Lagg's store in the Gem to get a supply of fodder for the trap.
"A horse on the island!" exclaimed Mr. Lagg. "So that's the ghost; eh? Well, it's very likely, but it sort of spoils the story.
"A ghostly ghost—a ghost in white
Appearing in the darkest night.
That it should prove a horse to be,
Most certainly amazes me."
"Good!" exclaimed Will, with a laugh. "You are progressing, Mr. Lagg."
A goodly supply of oats was placed in a box near the tent that evening, and then the boys and girls sat about the camp-fire and talked, while waiting for the time to retire. The boys were to make the attempt to capture Prince.
