Destruction layer in the palace. (a) Photo of excavation in an exterior food preparation area of the palace. #1 marks MB II debris that was most likely deposited by post-fire erosion. #2 points to charcoal-rich ‘dark layer’ indicating a major fire in the palace. Contains fragments of plaster and limestone spherules. Blue arrows mark its top. #3 points to the cross-section of excavated clay flooring. (b) Close-up photo of the same palace sampling sequence as in panel ‘a’. (c) Photo of broken pots with carbonized grains embedded in MB II 1.5-m-thick debris matrix, mostly composed of pulverized mudbrick and plaster fragments and limestone spherules. Debris matrix is found in the space between all palace walls. Note charcoal inside the broken pot. The end of a scale stick with 10-cm divisions is at upper left. (d) Charred palace roof timber surrounded by 1.5-m-thick charcoal-rich debris matrix of pulverized mudbrick. A scale stick shows 10-cm markings.