Halloween is coming, and the little skeleton is learning a new magic trick.
Find the hidden key and solve the hidden code in the image. The code is 4 digits.
Hint 1:
The right page hints at the key
The left page hints at the info
The key and info together leads to the final code.
Hint 2:
What gets thrown away here, may be needed elsewhere.
created by Abai, originally posted in MiAnGuan, a social and UGC puzzle App, on Halloween 2022.