The Case of the Prankish Professor (S06E15)

S06E01 The Case of the Bogus Books S06E02 The Case of the Capricious Corpse S06E03 The Case of the Playboy Pugilist S06E04 The Case of the Double-Entry Mind S06E05 The Case of the Hateful Hero S06E06 The Case of the Dodging Domino S06E07 The Case of the Unsuitable Uncle S06E08 The Case of the Stand-In Sister S06E09 The Case of the Weary Watchdog S06E10 The Case of the Lurid Letter S06E11 The Case of the Fickle Filly S06E12 The Case of the Polka-Dot Pony S06E13 The Case of the Shoplifter's Shoe S06E14 The Case of the Bluffing Blast S06E15 The Case of the Prankish Professor S06E16 The Case of Constant Doyle S06E17 The Case of the Libelous Locket S06E18 The Case of the Two-Faced Turnabout S06E19 The Case of the Surplus Suitor S06E20 The Case of the Golden Oranges S06E21 The Case of the Lawful Lazarus S06E22 The Case of the Velvet Claws S06E23 The Case of the Lover's Leap S06E24 The Case of the Elusive Element S06E25 The Case of the Greek Goddess S06E26 The Case of the Skeleton's Closet S06E27 The Case of the Potted Planter S06E28 The Case of the Witless Witness