With him gone, Helen felt a palpitating of her heart and a prickling of her skin.
"Oh, my! Nell! Look!" whispered Bo, in fright.

"I know I saw something." On top of the little ridge a round object moved slowly, getting farther out into the light.

Helen watched with suspended breath.

It moved out to be silhouetted against the sky--apparently a huge, round, bristling animal, frosty in color.

One instant it seemed huge--the next small--then close at hand--and far away.