The next morning she was still in the tree, but even higher, some 15 metres high, hunted by another cat which had started climbing the tree. As she was close to the roof, we went up and tried to build a bridge between the roof and the tree with some wood, luring her with some fish & water. The poor creature tried to cross, but the wood was too shaky and she panicked, climbing to the top of the tree, 20 metres above the ground.
Then we called the fire brigade, and after some negotiations they moved out. Once they were on the roof, they took a hooked pole, bending the tree towards the roof. This was a critical moment: the tree was old and chances were big the branch she was holding onto would crack and fallall the way down. Or the pole would lose his grip on the tree, catapulting the cat to the other side.
In the end, it worked out well. The branch *did* break, but it luckily fell on the roof, together with a very traumatised cat, who almost jumped on another tree.