The next day, Dikaiopolis' brother takes them to see that doctor he's heard about.
There's a little trouble on the way. What is it? And how does Dikaiopolis solve it?
There's more bother at the doctor's door? What is it? And how is that problem solved to everybody's satisfaction?
So here, finally, they are in the presence of the great man who, they hope, will cure Philip's eyes. What is the outcome of the doctor's examination?
Big problem! How can they get to Epidaurus: on foot? Why not? By boat? What's problematic here?
Why Epidaurus anyway? What is there at Epidaurus that you don't find in Athens?
How does it all end?

The story is told in the past tense for the most part, with some present tense forms thrown in, both for vividness of narration - and because we haven't learnt the aorist forms of those verbs yet.

  Compare to English:  

Yesterday I went downtown to get myself a new printer. I'm walking past the Bannerman Bank when the door is flung open and 2 masked men come charging out, wildly waving lolly-pops around. They jump into a waiting car and take off as if a hundred devils with little red-hot tridents were after them. What was all that about?
That's what I mean by "present tense forms for past tense events", in Greek, like in English. (To make those events more immediate, as if we were living them now.)