The Ghost Baby Boss's New Mother

I'm going crazy from the grief of losing my daughter. In the horror dungeon, I'm holding a ghost baby, singing lullabies to lull her to sleep, warning players not to wake her. The players are going crazy too. "Hey, that's the boss! Not your baby!" The ghost baby bares its fangs at them where I can't see it. "Don't talk bad about my mother!" 1 [Welcome new player to Sunshine Apartment, please...,... Find the key to complete the dungeon.] The mechanical voice finished speaking and then stopped. I didn't hear what was said in between. Behind me is a huge iron door. If you push hard, you can open a thin crack, letting in a sliver of sunlight.