The World's Desire by H. Rider Haggard

Now the host of Pharaoh marched forth from On, to do battle with the Nine-bow barbarians. And before the host marched, the Captains came to the Wanderer, according to the command of Pharaoh, and placing their hands in his, swore to do his bidding on the march and in the battle. They brought him the great black bow of Eurytus, and his keen sword of bronze, Euryalus' gift, and many a sheaf of arrows, and his heart rejoiced when he saw the goodly weapon. He took the bow and tried it, and as he drew the string, once again and for the last time it sang shrilly of death to be. The Captains heard the Song of the Bow, though what it said the Wanderer knew alone, for to their ears it came but as a faint, keen cry, like the cry of one who drowns in the water far from the kindly earth. But they marvelled much at the wonder, and said one to another that this man was no mortal, but a God come from the Under-world.

Then the Wanderer mounted the chariot of bronze that had been made ready for him, and gave the word to march.