“Sign up for the Auror preparation program in your sixth year,” said Susan. “It’s the next best thing. Oh, and if a famous Auror offers to oversee your summer internship, just ignore anyone who warns you that he’s a terrible influence or that you’re almost certainly going to die.”
“Miss Granger is selling them for two Sickles, and tells me that she has so far sold fifty of them. I believe that Nymphadora Tonks, in seventh-year Hufflepuff, is enchanting them for her.”
My understanding is that Tonks is a seventh year.
Edit: And what Zack said.
Definitely a seventh year:
“Miss Granger is selling them for two Sickles, and tells me that she has so far sold fifty of them. I believe that Nymphadora Tonks, in seventh-year Hufflepuff, is enchanting them for her.”
Ch 70, referring to the SPHEW buttons.
Edit: And what Zack said.