While wandering through Garden, you find a tiny isolated park between two buildings. There's a single park bench and a red bag, right on top, abandoned with no one in sight.
What's inside it?
 $20,000 cash. There's a bloody fingerprint on the top bill.
 Pistol. Fully loaded.
 Severed head.
 Small amount of groceries. Package of eggs and bread for sandwiches.
 Knife. It's an artifact from the underground. If you kill a psychic with it, it gets stronger.
 Crumpled up lady's hat.
 Adoption papers. Already signed & stamped. Orphanage is right down the street.
 Magazine of rifle cartridges. Made of explosive powder and hibi salts. It's some professional shit.
 Polaroid of a beach on a bright sunny day. Tiny sand castle in the corner.
 The “key” to the city. Old enough to have been given out three decades ago. It's clearly ornamental, but each time you explore the underground 1 in 6 chance you find a matching door.