It is possible, because I am one, but my type is called a cross-blood...
Half-blood Trainee #222
If your talking Harry Potter you have one muggle
parent and one wizard parent.
If you talking race you have a parent that is a differnt race than the other.
snape. his mothers maiden name was prince and he is halfblood. hence the halfblood prince.
I think you know when you claimed but other wise it confuses me. I just believe in Greek gods and think I might be halfblood.
The password is newhero
Camp Halfblood
yes
If you count Bacchus, Dionysus's Roman version, he was a halfblood before he proved himself in a battle, and was turned into a god.
Camp Halfblood
They came from stinkin England -Future HalfBlood Prince
No, sadly not. Percy's series has come to an end.
The way I understand it you become a Halfblood.
You would need to wait for them to claim you, using a sign or something.
If your talking about the Heroes of Olmypus series by Rick Riorden, then yes.