Then they tripped you, koku, and as many of them as could, made a jump for the machine.
Had the stranger sneaked into the laboratory while koku's back was turned?
koku was steering the craft, as he had readily learned how to manage it.
At this moment koku reappeared, saying the intruder had vanished.
koku staggered as he ran on, but he kept his feet, and did not fall.
koku, stay on guard here from now on until I return from Cuba.
Again came a tremendous explosion, and a shower of fine ashes sifted over the airship, and on koku and his living burdens.
"It might be a good plan to have koku on guard," said Tom's chum.
"koku is very devoted to me, and sometimes he makes trouble," the youth went on.
koku has a habit of getting in the way at the most unexpected times.