"There," he said, breathing a sigh of relief, "that peril is over. But suppose she should write another?"
Again his face wore an expression of nervous apprehension.
"I must write to Dr. Fox at once," he mused, "and warn him to keep close guard over his patient. Otherwise I may have to dread an explosion at any time."
He threw himself into an easy chair and began to think over the situation.
The man was alert and watchful. Danger was at hand, and he resolved to head it off at any hazard.
Meanwhile Oliver had occasion to pass thepost-office on his way home from school. Thinking there might be a letter or paper for his step-father, he entered and made enquiry.
"Is there anything for us, Mr. Herman?" he said.
"No," said the postmaster, adding jocularly: "Isn't one letter a day enough for you?"
"I have received no letter," answered Oliver, rather surprised.
"I gave a letter to Mr. Kenyon for you this morning."