Giant Turtle

The Giant Turtle is a huge turtle in which the City of Thieves is located on the top of.

Appearance
The Giant Turtle used to be a colossal animal that eventually died. Only part of his skull and a leg can be seen. It has a dark-green shell.

Death
It could have died from deshydration as it is in the middle of a desert. Althought, he could just have die from old age as it apparently was in part inside of its shell.

Trivia

 * It is unknown if the city of thieves was there before or after the Giant Turtle died.