Sly enters a high-temperature area full of fire and lava. Bentley tells him that the temperature readings are off the chart and that it must be the power source for Raleigh's storm machine.
The area is filled with furnaces and blast doors that emit fire, and Sly must close them in order to pass safely. There are also machines that Sly needs to run on to operate certain contraptions such as the conveyor belt. Once he finds the treasure key, he exits the area.