Yesterday I achieved entry. I had little success at first with attempts to lodge a grapnel in the far side of the roof peak. The tower is too tall, so I used bow & arrow to fire twine across the tower roof, and then used that to pull a rope over. Once the rope could be worked to the final on the end, it was simple to attach it securely. I then loaded the rope to three times my weight to test the strength of the attachment point, and it seemed perfectly solid. I then used a patent ratchet device to ascend to window level. The shutters had external metal hinges, which I employed as anchors to pull myself close to the window. I then used a pry bar to lever a shutter open; this required some effort, as the fastenings were surprisingly secure. I peered through the glass pane at the dimly lit interior, and saw only indistinct objects, apart from the sudden shock of seeing a human figure on the opposing wall. It was immediately evident that this was a mirror, and I was looking at myself clinging to the window. I used the pry bar to open the window, which moved inward with little effort, but a cascade of dust and a screech of rusty hinges. I was now able to enter The Tower.