The silvery light was simply not just a distraction to the dementor. Its hooded face turned towards you before gliding away hurriedly. It could not bear to stand all the happiness the Patronus represented. Would this be the last you see of it?

Your attention turns to the young boy. Looking closer, you realise he could not be more than a dozen years old. You will also realise that he had passed out from the terror he had just experienced.

Help him. Surely he needs to be comforted in some way?

What could you possibly do?