The Cinco Hermanitas continue on their walk towards Abuelita's house, where they find a cave that they can use to rest. Odilia sees this as a good opportunity to rest, but will also try to stay consious in case anything comes near them. So while everyone else is asleep, Odilia tries to stay awake to try to protect the girls from any monster that attempts to attack them.
During the middle of the night, Odilia, trying to protect the girls from anything harmful, sees a mysterious and dangerous looking bird that appears to be singing to them from on top of its rock. Apparently, the bird is one of the evil trinities that wants to get rid of the girls, and it's attempting to kill them using the song of the dead. It has a horrific power that can kill people just by singing a little song, but even with this kind of strength does have its flaws. The bird was singing to them away from the cave and therefore its power is much weaker. But even so, Pita, being the one closest to the bird suffered. She wakes up feeling very nauseous and tired. The other girls then later wake up and tries to protect Pita, and as the bird walks closer to them and sings to them even louder, Odilia starts to catch on as to what its power might be.
Odilia tells the other girls that the bird's singing can cause people to feel dead on the inside, and it becomes worse when the bird comes near them. So Odilia uses part of her shirt to cover up her ears, as well as her sisters. Then they made spears by tying up sharp rocks and large sticks found in the cave, and used it to attack. They charge full force at the bird and attack it. The bird realizes that it's in danger and there's no way it can take all of them at once, especially with the pieces of Odilia shirt the prevents the song of the dead, so it summons birds to take it spot at defeating them while he escapes. The girls beat the others, and see the bird trying to fly away, but Odilia throws the spear directly at its wing that causes it to fall to the floor. The girls realize the defeat of Dtundtucan, and as sunrise comes, they slowly walk away from the monster and into the woods.