It was the voice of Gwynplaine.
Fibi and Vinos started, and turned round. It was the voice of Gwynplaine, but in the mouth of Ursus.
Ursus, by a sign which he made through the door ajar, forbade the expression of any astonishment.
Then, again taking the voice of Gwynplaine,—
"Angel!"
Then he replied in his own voice,—
"Dea an angel! You are a fool, Gwynplaine. No mammifer can fly except the bats."
And he added,—
"Look here, Gwynplaine! Let Homo loose; that will be more to the purpose."
And he descended the ladder of the Green Box very quickly, with the agile spring of Gwynplaine, imitating his step so that Dea could hear it.