Moving-pictures.gif

Scary Old Witch Picture is a screamer GIF hosted at scaryforkids. It presents itself as a GIF of a picture of a pale woman's face. However, after about 20 seconds, she will change into an ugly monster with rotten teeth and a deformed eye. Since GIFs don't have sound usually, there's no scream.

Link
NOTE : The following picture contains a screamer!
 * scaryforkids.com/pics/moving-pictures.gif