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.
The right page hints at the key
The left page hints at the info
The key and info together leads to the final code.
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.