206
THE ROVER BOYS ON THE PLAINS.
forth. Sack Todd ripped it open quickly and scanned its contents. It was short and to the point:
"Look out for government detectives. They are on your track. One is named James Monday. There is also a fellow named Rover—beware of him.
NUMBER 9."
Utterly unconscious of what he was doing, Tom had played directly into the hands of Sack Todd and his evil associates.
