"Perhaps he got Mumps to send it to him," said Sam. "But I forgot, Mumps is away."
There was no time to discuss the situation further, for they were to start early on the following morning, and there were yet a dozen small matters which must be given attention. All were busy, and it was not until after eleven that evening that they turned in.
The day for the departure from Boma dawned bright and clear, and Cujo appeared with his assistants while they were still eating breakfast.
"Werry good day for um journey," he said, with a grin. "Make good many miles if nothing go wrong."
"You can't do any too well for me," answered Dick. "I hope our expedition into the interior is both short and successful."
At eight o'clock they were off. At first they had thought to go on horseback; but this was abandoned by the advice of the native, who declared that horses would prove more of a drag than a help in many places.
"Horse canno' climb tree bridge," he explained. "No climb high rock, no go around bad hill. We go on foot an' make better time."
The town was soon left behind and they struck a highway which for several miles afforded easy traveling. On all sides were dense groves of tropical growth, palms, mangoes, and the like, with enormous vines festooned from one tree to the next. Underneath were a great variety, of ferns and mosses, the homes of countless insects and small animals. The ground was black and wherever turned up gave forth a sickly odor of decayed vegetation.
"That is regular fever territory," explained Randolph Rover. "Boys, do not sleep on the ground if you can possibly avoid it. I sincerely trust that none of us take the tropical fever."
"If I feel it coming on I'll take a good dose of quinine," declared Tom.