Some one tapped her on the shoulder just then and she turned around to look into the stern face of the co-pilot.

“Passengers are not allowed here,” he said. “You’ll have to go back to your seats.”

Sue started to make a sharp reply, but Jane silenced her.

“The man in No. 4 is suffering from an attack of appendicitis,” she explained. “We’re trained nurses and thought we might find something here we could use to relieve the pain until we get to Chicago.”

The grim expression on the co-pilot’s face vanished.

“Why didn’t you say so?”

“You didn’t give us a chance,” retorted Sue.

“Do you think his condition is serious?” the flyer asked Jane.

“He’s pretty sick right now and he’s not a young man by any means. If you can send word ahead some way to have an ambulance waiting at the field, that will help.”

“I’ll get a radio off at once. Is there anything I can do?”