Feeling the sharp pain as they fell together, he reached his hand behind him and caught Silvertip's wrist.

Exerting all his power, he wrenched the Indian's arm so that it was not only dislocated, but the bones cracked.
Silvertip saw his fatal mistake, but he uttered no sound.

Crippled, though he was, he yet made a supreme effort, but it was as if he had been in the hands of a giant.

The lad handled him with remorseless and resistless fury.

Suddenly he grasped the knife, which Silvertip had been unable to hold with his crippled hand, and thrust it deeply into the Indian's side.
All Silvertip's muscles relaxed as if a strong tension had been removed.