Student or Learner
Is the punctuation of this sentence correct ?
He didn't reply; Instead, he turned on his heel and left the room
Looks good to me.
EDIT: Oh dear! I totally missed the capital I and lack of end punctuation. Sheesh.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.