reat amazement. "The
minister wasn't here this evening! That was Mr. Gunmore, the aviation
secretary. Don't you remember?"

"I don't remember any gentleman like that calling here to-night," Mr.
Swift said blankly. "It was the minister, I'm sure, Tom."

"The minister was here last night, Mr. Swift," said the housekeeper.

"Was he? Why, it seems like to-night. And I came upstairs after talking
to him, and then it all got black, and--and--"

"There, now; don't try to think," advised the doctor. "You'll be all
right in the morning."

"But I can't remember anything about that aviation man," protested Mr.
Swift. "I never used to be that way--forgetting things. I don't like
it!"

"Oh, it's just because you're tired," declared the physician. "It will
all come back to you in the morning. I'll stop in and see you then. Now
try to go to sleep." And he left the room.

Tom followed him, Mrs. Baggert and Mr. Jackson remaining with the sick
man.

"What is the matter with my father, Dr. Gladby?" asked Tom earnestly,
as the doctor prepared to take his departure. "Is it anything serious?"

"Well," began the medical man, "I would not be doing my duty, Tom, if I
did not tell you what it is. That is, it is comparatively serious, but
it is curable, and I think we can bring him around. He has an affection
of the heart, that, while it is common enough, is sometimes fatal.

"But I do not think it will be so in your father's case. He has a fine
constitution, and this would never have happened had he not been run
down from overwork. That is the principal trouble. What he needs is
rest; and then, with the proper remedies, he will be as well as before."

"But that strange lapse of memory, doctor?"

"Oh, that is nothing. It is due to the fact that he has been using his
brain too much. The brain protests, and refuses to work until rested.
Your father has been working rather hard of late hasn't he?"

"Yes; on a new wireless motor."

"I thought so. Well, a good rest is what he needs, and then his mind
and body will be in tune again. I'll be around in the morning."

Tom was somewhat relieved by the doctor's words, but not very much so,
and he spent an anxious night, getting up every two hours to administer
the medicine. Toward morning Mr. Swift fell into a heavy sleep, and did
not awaken for some time.

"Oh, you're much better!" declared Dr. Gladby when he saw his patient
that day.

"Yes, I feel better," admitted Mr. Swift.

"And