Keep playing normally to collect Clue Envelopes! You can find them through events, the Mystery Pass, completing areas, or by purchasing them from the Shop.

Duplicate Clues can be exchanged for rewards in the Evidence Room. Each duplicate gives you Stars, which can be traded for Evidence Packs. These packs include a Clue Envelope and extra rewards. To access the Evidence Room, tap the icon in the bottom right corner of the Evidence Board.

Envelopes may contain Clues of varying rarities and amounts. Tap the info (i) button on any Envelope to check what’s inside.