Missing Violet

Mia and Violet are best friends. When Violet leaves school sick one day, Mia looks forward to when she will return. But Violet continues to get sicker, and passes away.
Mia is left feeling lonely, and watching the kids in her class continue as though nothing happened, and she begins to get angry, withdrawing into herself.
When she discovers that everyone misses Violet, and she can continue to keep her friend's memory alive by doing some of the nice things that Violet used to do, while involving her classmates, her outlook gets brighter, and she becomes happy again.

Dealing with grief with kids is hard, but this book was a great introduction into how to deal with it.