Sentence:  It was a week after the taking of the black fox that Skookum Bill, on a short exploring trip a few miles west of their cabin, came across a <WSD>deadfall</WSD> which held a dead marten. He took the marten, and, when he returned, said to Dobbs: "I didn't know you'd built any <WSD>deadfalls</WSD> in the timber past the big draw?" 
Meaning of the word marked with <WSD> tags:  A kind of trap for animals, consisting of a heavy board or log that falls on to the prey.