Why, Harry, this hillside averages an eight and a third grade, yet Black's field notes show it to be only a three per cent.grade.

Hang it, the fellow must have played the trick purposely!" "Yet why ?" pressed Hazelton.
"I'll admit that I can't understand.

Unless, well---unless-----" "Say it!" "Unless Black joined this outfit with the express purpose of queering all the work of the entire corps as he could easily do.

Harry, do you think that Black could possibly be serving with this outfit as the paid tool of the rival road, the W.C.
& A.?
Can he be the enemy's spy within our lines---sent to prevent our finishing the road on time ?".