The Country Beyond by James Oliver Curwood

From the cabin McKay went first to the great rock that jutted from the broken shoulder of Cragg's Ridge, and as they stood there Peter heard the strange something that was like a laugh, and yet was not a laugh, on his master's lips. But his scraggly face did not look up. There was an answering whimper in his throat. He had been slow in sensing the significance of the mysterious thing that had changed his old home since months ago. During the hours of afternoon, and these moonlit hours that followed, he tried to understand. He knew this was home. Yet the green grass was gone, and a million trees had changed into blackened stubs. The world was no longer shut in by deep forests. And Cragg's Ridge was naked where he and Nada had romped in sunshine and flowers, and out of it all rose the mucky death-smell of the flame-swept earth. These things he understood, in his dog way. But what he could not understand clearly was why Nada was not in the cabin, and why they did not find her, even though the world was changed.

He sat back on his haunches, and Jolly Roger heard again the whimpering grief in his throat. It comforted the man to know that Peter remembered, and he was not alone in his desolation. Gently he placed a soot-grimed hand on his comrade's head.