Sentence:  Everything a living animal could do to destroy and to desecrate bed and walls had been done. [...]  A canister of <WSD>flour</WSD> from the kitchen had been thrown at the looking-glass and lay like trampled snow over the remains of a decent blue suit with the lining ripped out which lay on top of the ruin of a plastic wardrobe. 
Meaning of the word marked with <WSD> tags:  Powder obtained by grinding or milling cereal grains, especially wheat, or other foodstuffs such as soybeans and potatoes, and used to bake bread, cakes, and pastry.