Rico & Oskar (children's comic): The rain hut

Rain again! Rico, Oskar and their friends decide that a rain hut is needed. Checker gets the wood, so he also has the construction management - although Oskar of course knows a lot more about building huts. To prevent the thing from collapsing, Oskar nails plenty of reinforcement boards everywhere at the end. Even over doors and windows - from the inside! Help! How will Rico get him out of there now - Oskar has Klaus, what was it called again, claustrophobia! But together the friends find a solution.