captain's treasure. But you'll find it, an' you'll bring it home to
Captain Obed, won't you, Bob? Of course you will. You're a good
boy, and if you bring it home safe, why, I'll give you"--he paused
and seemed to make a great effort--"yes, I'll give you a hundred
dollars, or maybe a hundred and fifty. There! What do you say to
that?"

"How much treasure is there?" asked Bob, hardly knowing whether to
laugh at the old man or take him seriously.

"How much? It must be near a million dollars. O h, there's lots of
treasure!"

It struck Bob that if there was that amount he would not be getting
much for his share.

"Now you take that map," went on Captain Obed. "It gives the exact
location or the island, and shows where the treasure is buried on
it, right in the center of a place where four trees grow. The
island is about eighty-two degrees west longitude and twenty-one
degrees south latitude. It'll be easy to locate. Just cruise about
in that locality for a few days and you'll find it. Then dig up the
treasure."

"But suppose Captain Spark doesn't want to cruise around there?
It's his ship."

"Oh, you give him twenty-five dollars or so--out of your share, mind
you--and he'll be glad enough to do it. Now, Bob, I rely on you.
You're the only one I ever told my secret to, and I want you to keep