Hidden message

A small piece of paper that must have fallen out of the checked song lyrics. On it, in squiggly writing, it says: "The fat dog from 3 is no longer a problem."
- Quest item
- Yes
- Activity item
- No
- Information
- No
- Buy
- 150
- Sell
- 1
- Buy, forbidden
- 300
- Sell, forbidden
- 2