Episode Title:Do-In-Yourself.Episode Description:In a final attempt to pull off a great crime, the brothers order the Guide to Being a Master Criminal after reading an advertisement for it in the Behemoth newspaper; they then read in that same newspaper that Hawkeye Soames and Dr. Potson have been brought in to guard the jewel room at Osprey (which is a pun on Asprey) Jewellers during the exhibition of the Mardi Ruby, so make several attempts to steal it, but do not succeed until they build an "Easy-Assembly Vacuum-Grabber Crane" and use it to lift up the glass case around the diamond. However, Victor is caught by Soames and Potson (who initially suspected him of being a window cleaner) - and when Hugo comes downstairs, both brothers realise that the button of the vacuum-grabber crane upstairs is no longer being held, so the case drops back down on them.