This shows how in Pandora's box and Monkeys paw their curiosity got the best of them and bad things happened. Pandora opened the box and all of the evil let out. In monkeys paw he asked for 200 pounds but his son died.
They are both questioning the items. Like they were asking if the box had anything in it or if the monkeys paw actually work or not.
The difference is that Pandora's box let out all the evil and hope came out, but in Monkeys Paw he asked for 200 pounds but the old mans son died and nothing good happened.
The difference is that Pandora's box is based on Greek mythology and the Monkeys paw is based on humans.