Answer:
A-Stretched image that when viewed at an angle, becomes clear.
Explanation:
From what I’ve learned, it is a distorted image that becomes clear when it is viewed from an angle.
A description of the dark secret is something very personal that a person has, it can be something very deep about your past that you have done.
Personal tastes or attributes
What era are you looking for? I know that many of the people used animal bones to carbe things. Or used paints made from plants
Some depict hunters with bows, naked humans (though you rarely see the gender), some children (most carried or on the backs of others) and animals
