Leviathan Silver

Leviathan was passed from master to master under the humans, but he was not ordinary at all - he refused to serve most of the time. When he did so, humans wanted to kill him more than once, but nobody ever did, as he obviously was a big fish in the elf countries and was worth a lot of money. So instead of killing him, he was passed over to Ty now, as Tys personal 'slave'.