After finding all Moura's tears and reaching the final chapter you will eventually travel downwards through a castle and drop into a room with 2 headless knights, Kill them and go to the right where you will come to a worm boss you killed earlier and a chest with an extra life. Directly to the left of the chest is a pillar with a tiny cross, Stand underneath it and hold down to duck for a few seconds revealing the Scroll. I made a vid showing the part