With the Third Years away at Camelot College, Cackle's is in the care of Miss Drill and Miss Crotchet. The girls return from the Inter-Schools Festival of Music and Chanting having won First Prize. Professor von Raffenburg, a world-famous conductor who was at the festival, comes to Cackle's as he is impressed with Miss Crotchet's musical compositions. Meanwhile, Sybil has worked out that the Professor is a conman and asks Clarice to help her tell Miss Crotchet, but Clarice is ill in bed with cotton wool in her ears.