midnight
Your story about the ` Codfish ' last night , Billie -- and now this ! It 's enough to scare a person to death . '' `` There you go blaming me again , '' said Billie plaintively . In the weeks that followed the girls very nearly forgot about the unknown man , who certainly had no business roaming around Three Towers Hall after midnight . The only thing the chums did not like about the boarding school was the Twin Dill Pickles . The latter were getting more and more miserly -- insisting that the girls were getting too much to eat and that they should be allowed a great deal less liberty . In short , if the twin teachers had had their way Three Towers might have been a prison instead of a boarding school .