When the Obelisk was shattered by the Guardian, the Tear of Seas fell into the sea, where Hydros found it, and stored it safely in one of the drowned cities of Pagan. It stayed there, until one day, Devon found it in one of his fishing nets, and kept it. He gave it to the Avatar when he asked for it in Ultima VIII. He used it then to overpower Hydros. It merged other fragments to recreate the Obelisk.