What does "へ?" mean


I've searched around and I've only found the usage of へ as being a particle
meaning "in the direction of..." I'm not sure what it means as an
interjectional question.

Context:

[code]

    Girl: ねえ
          三島さんが
          具合悪いみたいなの
          保健室連れていくね
    Mishima: へ?
    Girl: うんわかったー
          先生にいっておくね
    
[/code]

Since the particle へ deals with direction, would the question be something
like "This way?" or "In this direction?"




You would need a better dictionary than that. I would recommend a good
monolingual one to anyone who is serious about his Japanese study.

The only possible answer would be that it is a dramatized pronunciation of the
interjection え/えっ = "What?", which would mean that Mishima is NOT really sick.
If Mishima were actually sick, this へ？ would make no sense.

You might also want to remember that we rarely, if ever, utter a particle all
by itself like that.

