Magic by H. De Vere Stacpoole

This Sikra was only a basket maker and knew only one trade, but for all that he was the wisest man on that island, and the most cunning, and the most evil. And Sikra said to himself, "If these two men kill one another over Kinei and her conduct, all may be discovered openly which is now known only secretly and to a few."

He went to the lagoon edge, and there, in the shelter of the canoe houses, he sat down, and, with his hands before him, began contemplating the matter, twisting the facts, this way and that, with the fingers of his mind, just as the fingers of his body had been accustomed to twist the plaited grass, this way and that, into the form of his baskets.