Roughly halfway through Little Nightmares you may crawl through a space and find yourself in the washer room, where you can see two washing machines against the wall. Toward the back you can climb up and reveal a rat and bodies, while close to the camera there is a lantern where you can save.
Although it appears that this room is where you need to go to progress, this is an optional room. You will need to head to the left and complete the sausage machine puzzle in order to get to the next area.
The sequel to the award winning Hellblade: Senua’s Sacrifice, Senua returns in a brutal journey of survival through the myth and torment of Viking Iceland. Intent on saving those who have fallen victim to the horrors of tyranny, Senua faces a battle of overcoming the darkness within and without.