Strange phenomena in the mansion

Exploration Stage: Mansion of Illusions
From: Rayden Storke
Description: Sparks are gathering in the sky above the designer's mansion... The house seems to be locked, but I can't find the entrance to begin with... Hmm? Is that the front door? And it's open! Keira might be here. Let's hurry up and enter!
Completed: Oh my god! The moment I stepped in, the door reverted to a hard wall! This is a very strange place. I'm sure I'll get lost soon. I hope Keira is not in more danger...