“Will you kindly explain, Mr. Runyon?” asked Mildred, very earnestly.

“I will. It’s simple enough. Just look at that bed.”

“The bed!” And now every eye was turned upon the couch.

“Of course,” said Runyon. “There’s something more than a mere mattress and springs. I’ve tumbled onto the thing twice, and I ought to know.”

[CHAPTER XXI—A FORTUNE IN TATTERS]

Already Arthur was pulling off the bedding and piling it upon the floor. They stood back of him in an excited group, every head craned forward to watch his movements.

Off came the pillows—blankets—sheets—finally the mattress. This last, a thin cotton affair, left a trail of fuzzy, lint-like debris behind it and disclosed on removal a canvas cover that had been spread underneath. The canvas, which was about on a level with the boxed-in bed frame, was as full of holes as a Swiss cheese and especially toward the center the weave had become disintegrated and given away to a dusty pulp.

“Rats!” exclaimed Uncle John, whose head was thrust between the shoulders of the major and Runyon.

As if his cry had been a summons, out sprang a huge gray rodent and the girls pushed back with loud screams as the dreaded beast struck the floor and scurried away down the passage. Another and another followed it, and now Louise, Patsy, Beth, Mildred and Inez were all dancing on top the seats, wrapping their skirts about their ankles and whooping like a tribe of Indians.

Amid this wild hullabaloo, which struck terror to the hearts of the brave men assembled, because at the instant they were too bewildered to realize what caused it, some six or eight monstrous rats leaped from the tattered canvas which covered the bed and vanished down the stairs.