All of which was of primarily historical interest tonight. Save that this sally-stair held, in the crook of its arm as it were, a large storehouse, and next to it a stable, belonging to the Mint. These buildings obscured the lower half of Brick Tower, and for all Daniel knew, might be connected with it through passageways—squinting at old sooty out-buildings in the dark at two in the morning left plenty of lee-way for the imagination.