But Mock dodged.

In the same instant the bespectacled German tried to snatch the other vial away from Wilhelm, but that soldier, too, dodged and saved the vial.
"On the ground is a good place for you!" growled Sergeant Kelly, knocking the stoop-shouldered stranger flat.

Then, before the fellow could rise Kelly had snapped handcuffs his wrists.
Two of the soldiers seized the bespectacled German just as he started to run.

He, too, felt the clasp of steel around his wrists.
Though Kelly and the four privates were armed with automatic pistols no weapon had been drawn.
"Twice you've played the sneak, you!" hissed the stoop-shouldered one, glaring at Private Mock.
"Twice more I'll do it to help Uncle Sam," retorted Mock, with a short laugh.

"I owed it to you to see you caught!" "But you're a German!" hissed the bespectacled one at Wilhelm.
"Why did you turn on us, who are also German ?" "My father was a German; he's an American now," said Wilhelm, coolly.