Just knowing the hotel has two floors not open to the public already indicates some issues. If a normal hotel hasn't been completely rented out by wealthy guests but suddenly closes off two whole floors from public access, it's quite odd.
Moreover, coincidentally those two floors were closed less than two days ago. The guests originally staying on the top floors were either moved to other rooms or left the hotel.
Now, it's almost certain that Angelo is staying in the hotel, so the next step is to go in to investigate the internal structure and layout of the hotel, and this only requires checking in. It's that simple.
Eliza directly hacked into the hotel's online booking system, inputting Phoenix's information for a reservation made half a month ago, and Tarta only needs to drag a suitcase directly to the hotel for check-in. Just checking into a hotel, simple.
