Duck Soup (Czarnina)

Name: Duck Soup (Czarnina)
Cuisine: European
Ingredients: 1 (4 pound) wild duck, whole; 4 cups duck blood; 8 cups water; 1 teaspoon salt; 1 stalk celery, cut into 2 inch pieces; 1 sprig chopped fresh parsley; 1 cup heavy cream; 5 whole allspice berries; 2 whole cloves; 16 ounces pitted prunes; 0.5 cup raisins; 1 tart apple - peeled, cored and chopped; 2 tablespoons all-purpose flour; 1 tablespoon white sugar; salt and pepper to taste; 1 tablespoon fresh lemon juice