[CHAPTER XXII.]
A MYSTERIOUS DISAPPEARANCE.
"You are sure of it, aren't you?"
Herc asked the question as they gained the street.
"Certain," replied Ned; "no mistaking that underhung jaw and heavy brow of friend Silas."
"Or that lady-like simper of the rascal Schultz. Ned, I feel that we are on the verge of big discoveries."
"Why?"
"I don't know; it's in the air—like electricity."