Tiny Bookshop Mascot Quest Guide
The “Who Killed the Mascot” quest in Tiny Bookshop can feel stuck if you miss one important step. Progress is linked to finding the murder weapon and having the case actively tracked, so skipping either will stop you from moving forward.
Step 1: Pin the Case to Your Investigation Board
Before doing anything else, make sure the Mascot Murder case is pinned to your investigation board in your shop. If it is not pinned, the next steps will not work.
Step 2: Go to Megamarche and Find the Weapon
Travel to Megamarche and look for the trash can in the area. Click it repeatedly until it tips over. Inside you will find a knife which is the murder weapon for the case. It will not appear with a single click, so keep interacting with the trash can until it falls.
Step 3: Advance the Investigation (Mega Marche Mystery)
After you have the knife, the investigation will progress. Continue speaking to characters about the CCTV footage lead. Sometimes other dialogue can appear first, so if an NPC does not mention the case, revisit the location on a different day until the investigation prompt shows.
Step 4: Use the Weapon to Trigger New Dialogue
Place the knife in your shop so the correct NPC can see it. This will start a new dialogue chain that gives you the next clue. You do not need to display it at Megamarche, only in your shop during a normal sales day when the right visitor arrives.
Step 5: Keep Following Up
The mascot quest requires you to visit places like the Café and the Fish Market more than once to collect every clue. Continue visiting locations until there is no new investigation dialogue.
Final Blurb
To complete the mascot mystery you must pin the case, find the knife in the Megamarche trash can, display it in your shop for the correct person to see, and follow up with every investigation lead. If the case does not progress, revisit locations on later days until it updates.
FAQ
Why is the quest not progressing
Make sure the Mascot Murder case is pinned to your investigation board before looking for clues.
Where is the murder weapon
It is in the Megamarche trash can. Click it repeatedly until it tips over and reveals the knife.
Do I need to keep the knife displayed
Yes, until the dialogue it triggers has been completed.
Why is the CCTV step not progressing
If another NPC event is taking priority, you will need to revisit on a later day to get the case dialogue.

