He considered it as much his duty to help as it was Henry's.

Moreover, he would not desert his comrade.
The fugitive, driven by the storm acting upon its wild nature, continued at great speed, and the panting boys were not able to overtake her.

So on the trio went, plunging through the woods, and saving themselves from falls, or collisions with trees, only by the light from the flashes of lightning.

Many boys, even on the border, would have turned back, but there was something tenacious in Henry's nature; he had undertaken to do a thing, and he did not wish to give it up.

Besides that cow was too valuable.