Fortymile (formerly titled The Interior) is the second novel in the Life on the Alaska Frontier series. It is coming some time in 2014.

Three steps in he knew he was in trouble. The frigid gray water piled up
against his legs, threatening to sweep his feet out from under him. With the
walking stick on the downstream side, he leaned into it and tried to shuffle
his feet slowly forward to avoid rolling an ankle on a boulder. The cold
water had an instant numbing effect—already his muscles were
tightening and resisting his efforts to move forward. The current washed the
gravel from beneath his feet, making him unsteady and forcing him to move
faster than he wanted.

In an instant he was underwater, the walking stick failing him and the
current sweeping him under before he could react. His heavy pack pulled him
to the bottom as he struggled to free his arms. The .45-70 was slung over
his shoulder and across his chest, preventing him from dropping the load.
His lungs were burning, screaming for oxygen.

Scene from Fortymile