The Mistery of the Invisible Thief

Poshla chetvyortaya nedelya leta, a yunye syshchiki tol'ko i delayut, chto pryachutsya ot zhary v teni derev'ev i mayutsya ot skuki. V Petersvude ni edinogo namyoka na tajnu! CHtoby hot' kak-to razveyat'sya, rebyata otpravlyayutsya na sportivnyj prazdnik i vstrechayut tam inspektora Dzhenksa, no i emu nechem poradovat' komandu syshchikov. K schast'yu, udacha ulybaetsya rebyatam: v Petersvude ob"ya...