eight o'clock
An hour 's delay , a minute 's , a moment 's seemed a crime . Yet delay there must be , but the tension and terrific excitement of her whole being at this period demanded some immediate outlet in action . She wanted to talk to Uncle Chirgwin , and she desired instant information upon the subject of her journey . First she thought of seeking the farmer in the valley ; then it struck her , the hour being not later than eight o'clock , that by going into Penzance she might learn at what time the morning train departed to London . Out of doors it was inky black , very silent , very oppressive . Joan called Mary twice before departing , but received no answer . Indeed the house was empty , though she did not know it .