Please note the text cut off on one. It should say Lavender Brown's pet killer.
Image shows a blue crossword puzzle with several squares filled in. The clues are:
1. Severus Snape's father
2. Lavender Brown's pet killer
3. Headmaster with ear trumpet
4. Auror
5. Aka wolfsbane
6. Memory charm
7. Irish chaser
8. Hermione turned leaves this color for Harry's birthday
9. Aragog's wife
10. Name of History of Magic author
11. Polyjuice potion ingredient
12. Durmstrang Headmaster
13. Explosive ball
14. Early Dumbledore home
Filled in squares (some overlap and are only counted once below):
1. Second letter
2. None
3. Eighth letter
4. Eighth letter
5. Third letter
6. None
7. Second letter
8. Second letter
9. None
10. Fourteenth letter
11. Third letter
12. Third and eleventh letter
13. Third letter
14. Second letter
Image shows a pink cryptogram:
JKKO KSH! NKUOC XFAX ATFAY