midnight
`` Uncle would not like it . I am going to peep in on her , and then make her come on upstairs to bed . '' Ruth led the way , with Bab at her heels . But it occurred to Barbara that the midnight visitor to Mr. Hamlin 's study might be some one other than his daughter . Bab did not know whether Mr. Hamlin kept any money in his strong box in the study . She and Ruth were both unarmed , and might be approaching an unknown danger . Quick as a flash Bab arranged a little scheme of defense .