g to try to get the _Coast to
Coast_ through and Jane informed her that she was marooned at the
field.

"Maybe I'll be home by morning," she concluded hopefully.

It was half an hour later when the phone on the night chief's desk
rang. Jane was near enough to catch most of the conversation for the
man on the other end of the wire was shouting.

"Sure, I know there's trouble," the night chief said, "but we aren't
moving any of our mail planes. It would be suicide to attempt to fly
tonight."

"What's the matter?" asked Slim Bollei.

"It's the governor at Laramie," replied the night chief. "There's been
a bad outbreak of diphtheria at Lytton, a village up against the
Montana line in the country that God forgot. The doctor there is out of
serum and a couple of the youngsters are desperately ill. There's
plenty of serum here and the governor wants us to get a plane through."

The night chief turned back to the telephone.

"But I tell you, governor, it can't be done. You can't see a hundred
feet through this storm and the temperature's down to five below zero
and dropping fast."

"Wait a minute," cut in Slim Bollei. "Find out what's the least
possible time the serum can be used and do any good."

"They've got to have it before tomorrow night," said the night chief
when the governor's reply came to him. "Everything else that's tried to
get to Lytton has failed. It's a plane or nothing at all."

"Tell him we'll get through some way," snapped Slim. "We can't let kids
die without trying."

"But we can't afford to wreck one of the new ships," protested the
night chief.

"I'll take one of the old tri-motors. Tell the governor we'll get
through."

The flyer turned and walked toward the radio room.

"Get Chicago," he snapped, "and have them put the operations chief on
the wire."

Less than a minute later Slim Bollei poured his story over the short
wave radio and into the ears of the operations chief at Chicago. He
wanted one of the old tri-motors and he got it with the chief's
blessing. After that he left on the run to route out a ground crew to
get the plane ready for the flight.

Miss Comstock, who had listened gravely, turned to Jane.

"Slim can't go alone," she said. "A nurse will be needed there. I'm
going. You take charge here."

"But you're needed more than I am," protested Jane. "Let me go."

Miss Comstock shook her head.

"There's too much danger. Slim and I will go."

"One nurse won't be enough,