You don't unlock it. There's nothing in it, and you can't unlock it, anyway. If somebody does unlock it, please edit this answer. I'm curious to learn if you can unlock it.
you can't.
There is no key to the chest.
you cant and its IMPOSSIBLE to do that impossible means that if you wished for something and it didn't came true thats impossible
You don't, because there is no key. The chest is just a distraction.
The key to the investigator's chest on Counterfeit Island is hidden in the bushes to the right of the cottage. You need to use a stick to reach it and then unlock the investigator's chest to get the next clue.
First go to skullduggery island,take your ship to a island called Keys World island and you will find the key of the chest on counterfeit island!;)
You don't open it. It was there just to get you to try.
You don't open it. It was there just to get you to try.
After you reunite the Blacksmiths, in the Dark World at their shop a chest will appear. Take the chest to the Sleeping Man and he will unlock it for you.
The locked chest is just a distraction. The painting is on the second floor, disguised by the street artist's abstract work. (Peel back the corner.)
There is no key. The chest is just a distractionnowhere it is a distraction
It's not in the chest.