Moments later, the explosion hit, like a petulant teenager venting his frustration on all before him. The innocent school, the place of learning and adventure and fulfilment that the Headmistresses and their followers had crafted, was ground beneath the heel of a feud that belonged in another realm.

And how the library suffered. Its loyal guardian lost control not only of his destiny but even his actions, falling into the hands of Ringmasterrob's Netherworlds' violence.

Later, those who ventured into the wreckage of the library would notice broken glass, which could equally have come from the shattered windows or from school paraphernalia such as potion bottles. They might have also seen small patches of damp, which may have been there already or may have been the dregs of inert potions. Many potions expire by turning to water if they fail to work or to be used soon enough - potions such as Fast Backwards.