Hadrian will try the room right next to this one cast thaumaturgy impatiently. "If there is a baby here, time is drawing short!" 

He will cause the door next to them to fly open with his magic.

Elyse will venture to a room across the hall.

Enialis is just following behind the armored individuals. More than happy to let them be the first in line in case another dart trap comes out of nowhere. Though he is beginning to wonder if he joined an entire team of Fae with how impatient they are. 

Hadrian's spell goes off, but the door does not fly open, as it is locked. You could either try to open the door with Thieves' Tools, or search the lower levels and try to find the key. 

"Looks like its locked." Enialis says pointing out the obvious, "I guess its my time." He then pulls out his thieves tools and shimmies in front of the door. Checking it for any traps before attempting to pick the lock. 

Investigation: 10

Thieves Tools: 11

Enialis is easily able to pick the aged lock, which fortunately does not come with any traps. However, he and the rest of the party find something worse on the other side of the door. 

This room contains a bricked-up window flanked by two dusty, wood-framed beds sized for children. Closer to the door is a toy chest with windmills painted on its sides and a dollhouse that’s a perfect replica of the dreary edifice in which you stand. These furnishings are draped in cobwebs. Lying in the middle of the floor are two small skeletons wearing tattered but familiar clothing. The smaller of the two cradles a stuffed doll that you also recognize.

“Kelemvor preserve us...” Hadrian lets out a curse as he sees the room.

”We need to leave this accursed place. NOW.” He looks around, longsword now drawn, and tries to lead the others toward the front door.

As you move to leave the room, two ghosts appear. You recognize them as Rose and Thorn.

Fae makes a face. "Ewwwww. What do you think happened? Why'd we see them outside?" She stays at the door, craning her head like it's a crime movie. When the two ghosts appear, she waves. "Hi guys! This is so weeeeird, right?"

Like with the versions you saw outside, Rose does the talking. "Our parents locked us in here to keep us safe from the monster in the basement. But they didn't come back and we got hungrier and hungrier until we died." The children genuinely seem to believe that their parents locked them in here for their own protection and say nothing about anything related to Strahd or any sacrifices or undead monsters being in the house. But unlike the Rose and Thorn from outside, they say nothing about having a baby brother named Walter.

Fae's eyes go wide. "That's so sad! And awful! I'm so sorry that happened to you. I wish I could give you a hug," she says emphatically.

Enialis looks at Haldrian and says, "Are you not a priest? How do we lay these spirits to rest?" 

Everyone make a religion check.

Religion: 7

Maybe you were meant to be a Cleric, Enialis, because you know that the souls of these children would go to rest if you properly buried them in something like a family crypt.

Fae, the children don't say anything, but they give sad smiles that indicate that they wish you could do that as well.

By the way, everyone make a Perception check

Perception: 11

Perception: 10

Elyse doesn't trust these ghosts since they lied about their baby brother earlier and, well, they're ghosts. She watches them closely and tries to tell if there is something they aren't telling the group.

Insight: 4

Enialis: Once again, your senses fail you and you see nothing.

Elyse: The children aren't hiding anything they know. Unlike other ghosts, these children don't seem vengeful or malicious, you can actually see that they're afraid of abandonment and don't want you to leave. You also see that their dollhouse is actually an exact replica of this house and you find the locations of secret doors, most notably one in the attic that leads to a spiral staircase that you presume will take you to the basement.

Elyse points out what she noticed about the dollhouse and says "Let's check those last couple rooms and then head for that staircase. If there is a way to help these spirits, I think we'll find it in the basement."

Perception if still needed: Attack: 6 Damage: Unable to parse dice roll.

Fae nods. "Okay, let's go." She looks at the kids and gives them a bright smile. "We're going to help you guys!"