“Sounds like a rattlesnake to me,” said Lawson.
Longstreth got up from the table and peered round the room.
Just at that instant Duane felt an almost inappreciable movement of the adobe wall which supported him. He could scarcely credit his senses. But the rattle inside Longstreth's room was mingling with little dull thuds of falling dirt. The adobe wall, merely dried mud, was crumbling. Duane distinctly felt a tremor pass through it. Then the blood gushed back to his heart.
“What in the hell!” exclaimed Longstreth.
“I smell dust,” said Lawson, sharply.
That was the signal for Duane to drop down from his perch, yet despite his care he made a noise.
“Did you hear a step?” queried Longstreth.
No one answered. But a heavy piece of the adobe wall fell with a thud. Duane heard it crack, felt it shake.
“There's somebody between the walls!” thundered Longstreth.
Then a section of the wall fell inward with a crash. Duane began to squeeze his body through the narrow passage toward the patio.