By virtue of the fact that TM96 (Thief) can aide a user to complete the Intraregional Subway (quest) as this allows you to teach any compatible pokémon the move Thief to take the Nocturnal Feather Item from wild pidgeotto on Route 16.
Once entering the Celadon Department Store, head over to the rooftop, this can be accessed by either using the elevator or taking the stairs. Once you have reached the rooftop speak to the Thief and accept to help him out.
Locating the items
The 3 items will be locationally fixed for every player.The three areas to find the items is outlined below:
- Purse-Celadon Department Store first floor, in between the Sofa cushions.
- Gold Necklace-Celadon Department Store second floor, in the first row of shelves, in between the shelf on the right.
- Recipe Book-Celadon Department Store fourth floor, on the right hand side of the book shelf.
The trilocational screenshots are galleried below.
- Main article: Thief