Sift flour once, measure, add soda -and salt, and sift together three times. Cream butter thoroughly, add sugar gradually, and cream together until light and fluffy. Add eggs and beat well; then chocolate and blend. Add flour, alternately with water, a small amount at a time, beating after each addition until smooth. Bake in two greased deep 9" layer pans in 350~ oven for 30 minutes, or until done. Use Halloween Frosting (See recipe) Spread orange tinted frosting between layers, reserving about 1/4 for pumpkin decoration. Spread chocolate frosting on top and sides of,cake, reserving sinall amount for decorating. Decorate top of cake with pumpkin of orange tinted frosting. Outline eyes, nose, and mouth of jack-o'-lanternface with chocolate frosting, using pastry tube or or a small knife. Melted chocolate may be used for outlining jack-o'-lantern faces.