You had just knocked Harlow down as you turn to Natty, Professor Onai and another professor starting to come over to you both. You were starting to walk over to Natty, stumbling as you do so (you were hurt during the fighting) when Harlow sits up pointing his wand at you. Natty notices this and runs over to you shielding you before Harlow could crucio you

"Natty!" You yell as Natty falls to the ground convulsing in pain

The professors come over, one pointing her wand at Harlow keeping him down as Professor Onai checks on Natty. Natty sputters a bit in pain but seems relatively okay from the curse.