And well might he be amazed at the spectacle which the complacent Bones had secured for him.

For this great reptile was more than green, he was a green so vivid that it put the colours of the forest to shame. A bright, glittering green and along the centre of his broad back one zig-zag splash of orange.

"Phew," whistled Hamilton, "this is something like."

The roar of approval from the people was unmistakable. The crocodile turned his evil head and for a moment, as it seemed to Bones, his eyes glinted viciously in the direction of the young and enterprising officer. And Bones admitted after to a feeling of panic.

Then with a malignant "woof!" like the hoarse, growling bark of a dog, magnified a hundred times, he slid back into the water, a great living streak of vivid green and disappeared to the cool retreat at the bottom of the pool.

"You have done splendidly, Bones, splendidly!" said Hamilton, and clapped him on the back; "really you are a most enterprising devil."

"Not at all, sir," said Bones.

He ate his dinner on the Zaire, answering with monosyllables the questions which Hamilton put to him regarding the quest and the place of the origin of this wonderful beast. It was after dinner when they were smoking their cigars in the gloom as the Zaire was steaming across its way to the shore where a wooding offered an excuse for a night's stay, and Bones gave voice to his thoughts.

And curiously enough his conversation did not deal directly or indirectly with his discovery.

"When was this boat decorated last, sir?" he asked.