The degree of JAPERY occurring in this treehouse is through the roof. That, or BEANS' marbles truly have been misplaced in some far-flung DARK HOLE.
You would prefer to believe that BEANS has ascended to a new plane of JAPERY. The alternative is too grim for your tastes.
In any case, you'll need to procure SPY EQUIPMENT.
You remember seeing some garbage in this treehouse that could come in handy, but what?