Britton, gazing on her face, was struck with an old, poignant pain. For a second, he thought it was Maud Morris. The features were there; the same teeth, the same rose-hued cheeks, the same sunny hair about the temples! The resemblance was remarkable, and, forgetting the swift descent, Britton stared.

Gaucho, over-zealous to maim the rival leader, stumbled, and a spill seemed imminent, but Britton's skilful lash sorted him out, thereby increasing the momentum of the train till the teams rushed neck and neck again.

"It's a dead heat," he said grimly. "We had better slacken speed before we cross the ice or neither sleigh will go any farther."

"Agreed," smiled the hooded beauty, reining in. Her color was heightened by the ride, and, as she pushed the furry fringes from her mouth to admit of freer breathing, Britton could have sworn it was the face of Maud Morris. Only, the eyes had a serene depth of expression which bespoke soul and purity. Therein lay the difference!

"Say," he began, confusedly, "you're like–you're the perfect mould of someone I know. Her name is Morris. Ah! I have it now! Such likeness can't exist without sisterhood. You're a sister of Maud Morris!" His voice was intense in its eagerness.

"I am not!" came the decidedly staccato answer, tinged with contempt. "Be careful," she added warningly. "There's a jam on this arm." They were sweeping the frozen river-bed, bumping over the jutting ice-boulders piled chaotically in a bend of the stream.

Britton took the lead, swinging briskly across the jam. The girl shouted a warning at his evident carelessness.

"Do be cautious," she begged. "The fresh snow masks the water-holes in treacherous bridges, and the current here is very swift."

Britton loped on without heed. The girl screamed, a second later. Without warning one runner of the foremost sled cut across a snow-arched slush-hole. Britton pitched backwards, splashing through the sloppy mask as a stone drops through scummy ooze.

The girl was at the place in three dog-leaps. A dull blotch of open water showed where the man had disappeared. She jerked her sled sidewise, as an anchor for her weight, grasped a runner with one hand, and lowered her body as far as possible, searching with despairing glances for a reappearing head. She gave a low cry of agony when nothing showed, and began probing wildly with her whip. Its butt-end fell across the taut ropes of Britten's sled, and, looking up, the girl saw the dogs in a heap, well-nigh strangled with the tension on the collars. There was something on the other end!