Can’t be Harry’s blood; at age eleven he’s certainly got less than 3 litres (if he weighs ~80 pounds), possibly little more than two (can’t recall if HJPEV is as skinny as Canon!HP). If you cut off a limb, he might have as much one litre “spill” out, but the rest would just sort of… dribble in spurts.
Can’t be Harry’s blood; at age eleven he’s certainly got less than 3 litres (if he weighs ~80 pounds), possibly little more than two (can’t recall if HJPEV is as skinny as Canon!HP). If you cut off a limb, he might have as much one litre “spill” out, but the rest would just sort of… dribble in spurts.
Is there any stipulation that the blood must be freshly gathered, and not kept preserved as for transfusions?