"After she had gone, I had the curiosity to examine the bolt on the door. The explanation of its mysterious opening proved simple enough. The screws whereby the socket of the bolt had been fastened to the door-frame had been removed, and the holes so enlarged that they could be slipped in and out without difficulty. Socket and screws had then been replaced, so that the bolt could be shot as readily as before. But the security was only an illusion; for, the latch being turned, a slight push would bring away the socket and screws attached to the bolt; and thus the supposed means of safety be ingeniously used to disguise the real absence thereof. VIII. "It occurred to me next morning that, considering the nature of the work that was cut out for me, it might be prudent to depart from my usual custom by leaving the diamonds at home in Christina's charge, as she had herself suggested; and I took the earliest opportunity of mentioning this proposal to Kate. To my surprise she at once expressed a decided dissent from the arrangement, and indeed seemed so much perturbed by it, that I at once relinquished the idea. But I begged her to tell me the reasons of her objection. "'Not now,' she said hastily; 'I hear papa coming; wait till after breakfast, and then you shall know.' "We were standing at the gate of the courtyard, breathing the fresh morning air. She left me, and returned to the house, whence Mr. Birchmore almost immediately issued, and saluted me with more than his usual cordiality. I wondered what his behaviour would have been had he known of the transactions of the past night, or of what was in store for us during the day! He began to talk about Kohlstein, and related several anecdotes of the bandits, by whom it was said formerly to have been inhabited. 'I have been up there more than once,' he remarked, 'and the traces of their occupation are still visible. I remember one feature that particularly impressed me--a narrow cleft or chasm of considerable depth, into which the old fellows are said to have thrown their prisoners when they became refractory.' "'Would the fall kill them?' "'I should say not; the bottom seemed full of chopped brushwood and other such rubbish. But no human being could have got out unaided; and probably a day or two's lonely sojourn there would bring the most resolute malcontent to terms. It would be a ghastly fate to fall in there, nowadays, and have one's skeleton fished out again the following year, perhaps, and a sensational paragraph in the newspapers. You young folks must pick your steps carefully to-day.'