Most of these somber purple posters carried blown-up versions of the security advice on the Ministry pamphlets that had been sent out over the summer, but others bore moving black-and-white photographs of Death Eaters known to be on the loose.
Slughorn hurried over the threshold, several bottles in his arms, and wearing a somber black cravat.
There are no more uses of "somber" in the book.
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Before she said anything, I knew it was bad news from her somber face.