Lost on the Moon or In Quest of the Field of Diamonds

n, was to run to where Professor Roumann lay in a semi-conscious condition. An instant later Mark slo

asked Mark, of

rson slowly, "but I fear Mr. Roum

who had bent over the German

he gets attention," s

, Mark, and we'll see

lly revived the German, and he opened his eyes. He looked around, into the faces of his friends, as if scarcely

ce block was loosened, and that caused the force of the Cardite to s

now," urged Mr. Henderson. "Are yo

e water which Jack gave him, and then

zy. Something hit me on the head, and the fumes from the Cardite to

into a graduated glass, added a little water, and gave it to his fellow, inventor, who, after drinking it, declared that he felt much bett

Henderson more than momentarily shocked. In a few m

whole projectile by tampering as he did with the machinery. Had I been testing the large, instead of the small motor, there wou

get here from Mars," inter

," adde

net, so it couldn't have been him," wen

f the odd man who had sent Mark

e been him?"

sor Henderson. "We must be on ou

g on the exterior of the projectile, and the v

' I is out heah, an' we heard suffin

hut themselves up in the projectile while they conducted the experiment. Jack opened the

und, have you, Wash?" asked Mark. "Some one has

een here," announced Andy Sudds, w

n't laik de idea ob us goin' dere arter d

one has been around here who had no business to be, and we

in readiness for any intruders, the old hunter

d Mr. Henderson were carefully

to explain that the explosion was something like that which occurs when the breech-block of a big navy gun is not properly in place. The force of the Cardite

asked Mark. "Who would want to inj

chinist is out of it, and as for that man who sent the note to

idently done with the idea of delaying us. The enemy could not have desired to utterly disable

ed Professor Henderson; "yet, I can't understand why. Wh

iscover the secret of

r Rouman

ctile nearly every minute of the day, and whoever it was, must have watched

Nor were there any traces of the person who had so nearly caused a tragedy. Washington

new small motor," announced Professor Roumann, after once

ake long?"

an use some of the parts of this o

. "Perhaps there'll be no diamonds left on the moo

icle in the paper from Mars says

bring back bushels and bushels of diamonds?-which, in view of what the paper says

onds, it will give me a chance to conduct some experiments I have long postponed because of a lack of the precious stones. We can use them for laborator

be done that day, and so, after carefully locking the shed, and posting Andy on guard with his gun,

cientists, "I think it's up to us to try to find that myster

l have a hunt for