At last there was nothing left in the hollow tree.

After a time, I stopped at a hollow tree that had to be there.

Then they both broke into a run toward the hollow tree.

"And later they followed us to see if we got the message in the hollow tree."

The trees were so big that one man lived in a hollow tree.

In five minutes' time they were by the hollow tree, well out of sight.

First, all these things must be carried from the hollow tree to the boat.

The message from the hollow tree had been very explicit.

Look man, you're barking up a hollow tree this time.

Don't even if you have to live in a hollow tree!