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.