A Beast on the Loose ("Fetch" Mission}

First things first, you'll need to get to Level 3 of the Chandelier. Hop on Core Lift 1 and ride it up to the Pater's Manor area. Once you arrive, find Pater's maid right at the entrance to the Manor.

Speak with the maid. She'll tell you that Lassie Doo, the Cardinal's dog, has gone missing. She'll also confirm that the dog didn't go down the lift, meaning it's somewhere within Chandelier itself.

To get more information, you'll need to chat with Pater's Valet. He'll give you some hints about places Cardinal Pater might have frequented. After a bit of dialogue, press the [X] button one more time to get the crucial clue: the Basilica.

Now, make your way to the Basilica. You'll need to take the elevator next to Theresa's manor up to Level 2, and then catch another elevator from there up to Level 1.

Enter the Basilica. You should find the missing dog, Lassie Doo, lying on the steps. Approach and talk to him to confirm you've found the right pup.

With Lassie Doo in tow (figuratively speaking, of course!), head back to Pater's Manor and report to the maid. This will complete the mission.