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Describe the process in which Karana crafted the weapon she planned on using to kill the devil fish using these words in your description; barbed point, shaft and sinew.
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Four of the sea elephant teeth were left, and though I broke all except one, this I worked down to a head with a barbed point. I then made a ring and fastened it to the end of the shaft, and into this ring fitted the head, which was tied to a long string made from braided sinew...