Now you know what dogs do when they see cats. They chase them, just for
fun, you understand. And this is what Carlo did--he raced after this cat
as fast as he could go.

"Carlo!" chattered the Monkey.

Now, somehow or other, the strings by which the boys had fastened the
Monkey on the back of the dog had become loosened. One knot after
another came undone, and the Monkey felt himself slipping.

"Oh, wait a minute! Wait a minute, Carlo!" cried the Monkey, for he
could talk now, being out of hearing of the boys. "Wait! Wait!" cried
the Monkey. "I am falling off!"

"I can't wait!" barked Carlo. "I must get that cat!"

On he ran, faster than before. Dick and Herbert saw him, and Dick cried:

"Oh, look at my dog chasing a cat. Let's see if he gets her."

So they ran after the dog.

Faster and faster went Carlo, and the strings that held the Monkey on
became looser and looser until, at last, they slipped off altogether,
and down fell the Monkey into the grass.

The grass was tall and thick, and at the moment when the Monkey fell
Dick and Herbert were down in a sort of little valley, and they did not
see what had happened. So the Monkey fell off the dog's back before they