New pictures adorned the walls, many of them showing people who appeared to be in pain, sporting grisly injuries or strangely contorted body parts.
To Mrs. Weasley’s displeasure, Harry’s sixteenth birthday celebrations were marred by grisly tidings brought to the party by Remus Lupin, who was looking gaunt and grim, his brown hair streaked liberally with gray, his clothes more ragged and patched than ever.
There are no more uses of "grisly" in the book.
Show samples from other sources
a grisly murder
Even by the standards of plane crashes, it was a grisly tragedy...
Time, 2009 -- http://www.time.com/time/specials/packages/article/0,28804,1914815_1914808_1914788,00.html(retrieved 10/15/09)