A screenshot of a tweet from Hidden Cash, a Twitter account that sends out tips on where to find cash placed throughout the Bay Area.
The mystery man behind the hidden cash juggernaut tweeted he is bringing his scavenger hunt back to the Bay Area.
On Sunday night, he tweeted: "San Francisco-we are coming back home. Get ready for some epic fun! Big plans for next weekend!"
On Saturday, he turned Southern California's Hermosa Beach into a frenzy, as people frantically searched for money tucked into Angry Birds toys.
The mystery man has said the hidden cash game is a fun way for him to give back.
There are reports hidden cash has been found in Great Britain.