the throwing of two stones.

Win cast a glance at the deserted castle of St. Aubin's, a
miniature Castle Elizabeth on its isolated rock off shore, another
at the martello tower on the point.

"I was talking to a man about those little towers," he remarked.
"One can be rented for a pound a year, and there are thirty-two of
them around the island. But they didn't amount to much when it
came to actual fighting. The rocks and tides are what makes Jersey
safe. That's what I meant by this place needing no bulwarks."

"One of those martello towers would make a fine wireless station,"
commented Roger. "Why did they build them if they aren't any use?"

"They thought they were going to be," replied Win, looking to see
whether the girls were coming. "About two centuries ago there was
a battle down in the Mediterranean that was decided by the
possession of one of those little towers, so England built a good
many. But they weren't much use after all."

"I never knew that before," said Edith, as she and Frances joined
the boys.

"England wasn't the only nation that was taken in by them," Win
went on. "Italy has a number on her southern coast. For a long
time people supposed they were called martello towers from the man
who built them, but I found in a book that the name came from a
vine that grew over this one in Corsica. Before many moons pass
I'm going to get into one of them. Smugglers must have used them