The next day both youths felt very tired, and knew they would sleep like logs when night came. In the evening they drowsily discussed the mathematical studies which had so completely and perhaps harmfully engrossed Gilman, and speculated about the linkage with ancient magic and folklore which seemed so darkly probable. They spoke of old Keziah Mason, and Elwood agreed that Gilman had good scientific grounds for thinking she might have stumbled on strange and significant information. The hidden cults to which these witches belonged often guarded and handed down surprising secrets from elder, forgotten eons; and it was by no means impossible that Keziah had actually mastered the art of passing through dimensional gates. Tradition emphasizes the uselessness of material barriers in halting a witch's notions, and who can say what underlies the old tales of broomstick rides through the night?