villa stretches down towards the sea in four terraces. Piso, a literary patron of poets and philosophers, built there the only ancient library that has survived virtually intact. Between 1752 and 1754, a number of blackened, unreadable papyrus scrolls were serendipitously recovered from the Villa of the Papyri by workmen. These scrolls became known as the Herculaneum papyri or scrolls, the majority of which are today stored at the National Library, Naples. Although badly carbonized, a number of scrolls have been unrolled with varying degrees of success. Computer-enhanced multi-spectral infrared imaging helped make the ink legible. There is now a real prospect that it will be possible to read the unopened rolls using X-rays. The same techniques could be applied to the rolls waiting to be discovered in the as-yet unexcavated part of the villa, eliminating the risk of potential damage from unrolling. Later CT scan revealed the scrolls' fibres structure, sand, and other debris trapped in the scrolls. These findings help a safer unrolling. However, the text remains illegible. Two of the rolls stored at the French National Academy in Paris have been extensively examined by X-ray in summer 2009. However, the text imaging failed because Roman writers likely used carbon-based inks, essentially invisible to the X-ray scans. Similar later attempts all failed. In 2015, a team of scientists managed to increase the contrast between the carbon ink and the carbon-based papyrus using X-ray Phase Contrast Tomography, and read Greek words along the outer papyrus, marking "a revolution for papyrologists". While researchers can identify certain words on the scrolls, there is still a long way to go before the stories on the scrolls are unlocked. Boathouses and the Shore In 1980–82, excavations initially turned up more than 55 skeletons on the ancient beach (just in front the city walls) and in the first six so-called "boat sheds". Long before this finding, it was believed that the majority of the town's inhabitants had managed to flee, as only a few skeletons had been unearthed during all of the excavations. However, this startling discovery led to a shift in perspective. The last inhabitants waiting for rescue from the sea were probably killed instantly by the intense heat of the pyroclastic flow, despite being sheltered from direct impact. A study of victims' postures and the effects on their skeletons seemed to indicate that the first surge caused instant death as a result