They embarked, and rowed out through the lagoons.
The water was mostly quite shallow, but there were places where the detectives could not see bottom.
In a short time they reached the island in the swamp, and, leaping ashore, they ran over to the hut.
One glance inside was enough for them.
"The place is deserted," was Harry's comment.
"Wait for them. We may have headed off the rascals."
"If they saw us coming here, they will shun the place."
"There was no way to conceal our movements."
An hour went by quietly enough.
Not a soul ventured near the place, and Harry grew restless.