In large bowl, mix together cream cheese, chicken, cheddar cheese, mozzarella cheese, ranch dressing mix, and pepper. Stir in chicken and set aside.
Make 4 rectangles of dough from each roll of crescent rolls. Please the perforations in each rectangle to seal the pieces together. Divide the mixture evenly between the 8 rectangles placing it in the center of each rectangle. Then pull the 4 corners of each rectangle of dough to top and pinch points together. Then press the seams together creating a little crescent pyramid.
Place on a baking sheet. Brush the top of each pyramid with melted butter followed with a sprinkling of bread crumbs.
Bake at 350 degrees for 20-25 minutes until golden brown. Serves 8.