Help Alex collect tokens and get cool rewards!
Tokens can fall out of any object on the locations. The more items you remove, the more tokens you get! Collected tokens are displayed on a scale you can find above the event icon in the upper left corner.
Tapping the icon will take you to the event menu. There you can see your current stage and how many more tokens you need to get the reward, as well as the Grand Prize you will get if you complete all stages!
Note that in different launches of this event, it may have one of two names: Mysterious Forest or Lost Rubies. Depending on that, you will have to collect tokens or rubies.