The baby will continuously steal fuses in The Baby in Yellow until they're moved to the vent code is found and used to open the cover. With each night that passes, the baby gets more violent and harder to pacify. As the baby gets more meddlesome and hostile, players will need to solve increasingly difficult puzzles and find new ways to stop or settle them.
After the first few nights, players will reach a chapter called Pickman's Madness, where they need to follow a white rabbit to escape from the baby. During this chapter, the elevator will lose power but fuses can be used to restore it. The fuse room is visited after completing Pickman's apartment by stealing the baby's key. After going through a few doors, players will reach the elevator, but it immediately loses power. To restore power, blue and pink fuses need to be placed in the correct boxes.
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Unfortunately, as players start placing fuses, the baby will steal them. There's no way to complete this section until the baby is dealt with, but it can be unclear how to stop them. The baby needs to be placed in the vent to the right of the green lockers, but a number combination needs to be entered first. Luckily, the vent door code can be found by exploring the same room that the fuses are in.
Players can access the vent and stop the baby from stealing fuses by searching the room for a four-digit code. However, there are two pieces of the code that can be found in different locations. The first part of the vent code can be found by looking to the left as soon as players enter the room. There's a whiteboard to the left that has a red lock drawn on it and '43' written next to it. The rest of the code is smudged on the
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