<P> The King 's Chamber is entirely faced with granite . Above the roof , which is formed of nine slabs of stone weighing in total about 400 tons , are five compartments known as Relieving Chambers . The first four , like the King 's Chamber , have flat roofs formed by the floor of the chamber above , but the final chamber has a pointed roof . Vyse suspected the presence of upper chambers when he found that he could push a long reed through a crack in the ceiling of the first chamber . From lower to upper , the chambers are known as `` Davison 's Chamber '' , `` Wellington 's Chamber '' , `` Nelson 's Chamber '' , `` Lady Arbuthnot 's Chamber '' , and `` Campbell 's Chamber '' . It is believed that the compartments were intended to safeguard the King 's Chamber from the possibility of a roof collapsing under the weight of stone above the Chamber . As the chambers were not intended to be seen , they were not finished in any way and a few of the stones still retain masons ' marks painted on them . One of the stones in Campbell 's Chamber bears a mark , apparently the name of a work gang . </P>
what was written on the walls of the king 's chamber
the name of a work gang