"That's a good line of observation," was Mr. Perry's commendation. "Now, let's explore this island and see if your points are well taken."

Even the landing at which the boat now rested was not particularly attractive as such at first view because of a rather difficult climb between it and the main level of the island. However, all the members of the band of "Crusoe hunters" were good climbers and they soon made their way up the stony steep to the surface land level.

"It's funny somebody hasn't picked this place as a site for a summer home," Mr. Perry remarked as he took a hurried view of his surroundings.

"The trouble is it doesn't look like a very interesting place from a view out on the river, and there are hundreds of islands to choose from," said Cub.

"Yes, I suppose so," his father agreed; "but in my opinion the place deserves a second look-over. I'm going to keep it in mind as a future prospect."

"We'll have to put up a radio station here then," said Cub.

"Oh, sure, we can't do without that wherever we go now-a-days," his father replied.

They skirted the entire shore of the island and found Bud's suggestion regarding high, steep banks to be true in every quarter. Not another practical landing place, except with derrick or rope ladder, was discovered. They estimated the island to be about five acres in extent.

"Well, we haven't found much evidence yet, indicating that this is the place we were looking for," Cub remarked as they arrived back at the starting point of their exploration.

"I suppose the next thing for us to do is to explore the interior of the island, and then perhaps we'll be in a position to form some sort of conclusion," said Mr. Perry.