During this time, the jeweller made the diamond play and sparkle in the lamplight, and the gem threw out jets of light which made him unmindful of those which—precursors of the storm—began to play in at the windows.
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You mean all that was just the precursor?
Marissa Meyer -- Cinder
In a way, that terrible episode became not only the precursor but also the symbol for all the horrible viciousness that would follow.