Preheat oven to 400℉. Line a baking sheet with parchment paper, set aside.
Set the dough onto a slightly floured surface. Roll it out with a rolling pin into roughly a 9x14-inch rectangle.
Spread the pizza sauce down the center of the rectangle, keep it a couple inches from the sides and an inch from the ends.
Spread marinara down the center of the pizza crust, leaving a few inches of crust on each side.
Top the sauce with the cheese, the pepperoni then the olives. Save two olive slices for the eyes.
Use a sharp knife to slice 1 inch wide strips of dough, but don’t cut all the way to the sauce.
Fold the bottom of the dough up and then alternate folding strips over the center of the pizza braid. You can leave thin gaps but none that are too big because the sauce or toppings may leak out.
Add the two olives to the mummy’s face.
In a small bowl, stir together the egg with tablespoon of water. Brush a thin layer over the dough.
Mix together the salt and the garlic powder. Sprinkle all over the braid.
Carefully move the braid to the prepared baking sheet. Bake the pizza for 12-15 minutes or until golden brown.
Cut into slices and serve while hot.