He had not seen a sword with a metal sheath before. And who sheathed a Shardblade? And the Blade itself . . . was it black? An inch or so of it had emerged from the sheath as it slid on the rocks. Szeth swore he could see a small trail of black smoke coming off the metal. Like Stormlight, only dark. Hello, a cheerful voice said in his mind. Would you like to destroy some evil today?