While traveling through the infested village of Valor Mortis, you can come across an abandoned house on the side of the pathway, right down the road from the Marketplace Lantern, where you'll be able to start the Lullaby quest.

Once you enter the house, you'll find an empty crib with a disembodied crying that you'll need to soothe by collecting a few items, starting with a key.

The first step is fairly easy, as you'll just need to go through the back of the house and into the garden to grab the Weathered Key sitting in the corner in front of two infected villagers.

There is one enemy here that will ambush and try to overwhelm you from behind while dealing with the first two villagers.

Once you've acquired the key, you'll need to backtrack or fast-travel to over to the Marketplace Lantern before you'll be able to get the next item required to complete the Lullaby quest.

Either traveling to the center of the village in front of the destroyed carriage from the original Lantern or the Outpost one, you'll want to use the following path to get to the location of the next quest item.

Once you've acquired the doll, simply head back or fast-travel to the very first Marketplace Lantern , into the haunted house, and place the doll in the crib. After placing the doll, you'll be rewarded with the Tomorrow's Promise Amber that makes Ferro Flasks restore more health over a longer period of time rather than instantaneously.

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