In the meanwhile the captain had built a big fire and had a bed of red coals ready to broil the fish over, for he knew just how to do it.
When the dinner was in process of cooking Tim returned.
"Did you hoist the signal ?" asked the captain.
"Aye, aye, sir." "What did you use for a flag ?" "My shirt, sir." "Your shirt ?" "Aye, aye, sir.

You see I had two on, an outer shirt and an inner shirt.

I didn't need the outer shirt as it's so hot here, so I hoisted that on top of a tall tree.

It's flying in the breeze now, sir.

You can see it from here." He led the way down to the edge of the water and pointed inland.
Sure enough, flying from a tall cocoanut tree was a white shirt.
It could be seen for a long distance.
"That's a fine idea," complimented the captain.