For the cake: Beat the eggs with the sugar until light and fluffy. Sift the pumpkin powder together with the dark cocoa powder, then add to the egg mixture and mix until combined. Add the whole milk and olive oil, stirring until smooth. Preheat the oven to 350°F. Bake for 20 minutes. Divide the batter into 7 small cups and 1 large round pan. Once baked, remove the cakes and let them cool on a rack.

Melt the dark chocolate with the milk. Once fully melted, pour it over the large cake.

Decorate the cake using all the ingredients to create spooky faces. Spread whipped cream on the cake to help the decorations stick.

Get creative and make different spooky faces on the cupcakes and chocolate sandwich cookies. Use the ingredients to make eyes, or draw eyes, noses, and mouths with dark chocolate. Cut strawberries to make tongues, and use pumpkin seeds for teeth.

After decorating the faces, arrange the cupcakes around the large cake to form the 'island.'

The cake is ready to serve.