The Time Is Now
The strange thing about it is that the wall was sloped so it was a strange place to put up a painting. Leo immediately went to it. He felt something big and solid at the back of the painting. Alice helped Leo and tried to retrieve the hidden item.
In the end, they had to rip the back paper off the painting. Leo got a big old key in his hand. Leo felt a rush of excitement. He ran to the box and put the key in the keyhole.