This is a wooden food cart that is pushed up and down Tin Street by the goblin Griznak. If can be found virtually anywhere on Tin Street and it makes it's way up and down the street several times a day.
Griznak loudly advertises his wares by shouting "Rat Burgers, come and get your Rat Burgers" from time to time.
Rat burgers can be purchased for 1 gold each. Give the party @Rat Burger . There is a wooden lid on top of the cart Griznack will open to get the burgers, as they are stored inside the cart to keep them warm.
Griznak's trading licence is out of date, and any inspector or Sherriff from the Azorius Senate would fine Griznak 10 gold for this bureaucratic error.
A DC14 Perception roll successfully made after buying a rat burger or asking to see into the cart will result in the sharp eyed adventurer seeing a glint of light from something metal stored within the cart, under the burgers.
A search inside the cart will reveal it contains an array of metal knives hidden beneath the burgers. Griznak is really a mobile armoury carrying weapons for the @The Goblin Street Gang members who are hiding in the nearby alleys. If the weapons are found Griznak will attack the party, and he will be joined by 3 @Goblin Street Gang Member.