Door 4 (B U)
A crimson fish
Another journal page.
For the next set of houses I played the word game again. This time I started with trick, visited 8 houses (leaving yellow notes behind), and then changed a final letter to make my way to treat
What do the numbers on the thiefs path spell?
Slow cooker (large reptile you find in Australia) (CROCK)
Texture on a tire (Sole of a shoe) (TREAD)
To open an egg (the sound of a baseball being hit by a bat) (CRACK)
A train's road (a single song from an album) (TRACK)
Workday pause (to smash something) (BREAK)
Scary door sound (if it is not nailed down properly a floorboard would make this sound) (CREAK)
Sandwich material (a kind of food that is baked) (BREAD)
A frog's word (a slang word for die) (CROAK)
Answer
Use numeric substitution of letters (1A, 2B, 3C, 4D, 5E, 6F)
Translate the door numbers into letters (FRIGHTEN)