paragraph: Charter had been as good as his word, and had been closeted with the head of the college for an hour. The girls went back with Tom, Dick and Sam, and also had an interview with the president. Then Doctor Wallington sent for Flockley, Koswell and Larkspur. Only Flockley answered the summons, and it was learned that Koswell and Larkspur were afraid to come back, fearing arrest. Parwick had also disappeared. Then had come a telegram from Dan Baxter giving the address of the druggist, Schlemp. Word was sent to this man, and later he wrote that Parwick had once worked for him, but had been discharged for drunkenness and because he was not honest. The interview between Doctor Wallington and Flockley was a most affecting one. The dudish student broke down utterly, and confessed all. He said Koswell had hatched out the plot, aided by Larkspur, and that he himself had been a more or less unwilling participant. He told much about Parwick, and how that dissolute fellow had spoken of having the strange powder, which was a Japanese concoction, and which, if used often, would render a person insane. He begged the good doctor to forgive him, and said he would be willing to do anything in order to remain at Brill. 
question: What did the dudish student confess?
answer: He confessed that Koswell had hatched out the plot, aided by larkspur, and that he was an unwilling participant. He also spoke of Parwick having a strange Japanese powder that makes a person insane