On the chest of another hung a huge disc of polished fossil clam-shell.
"Plenty strong fella fight," Sheldon warned them in conclusion.
They grinned and shifted delightedly.
"S'pose bushmen _kai-kai_ along you ?" he queried.
"No fear," answered their spokesman, one Koogoo, a strapping, thick-lipped Ethiopian-looking man.

"S'pose Poonga-Poonga boy _kai-kai_ bush-boy ?" Sheldon shook his head, laughing, and dismissed them, and went to overhaul the dunnage-room for a small shelter tent for Joan's use..