Susan narrates this story and it helps to have heard some of the eighth Doctor audios as she refers Alex - who you probably won't know otherwise. That said its only a reference at the beginning and end so it doesn't really affect the plot.

Quinnis - this is mentioned in the Edge of Destruction as somewhere the Doctor and Susan visited before meeting Barbara and Ian, so its quite nice to have an adventure that fits into continuety.

The TARDIS forfills its original intention here of blending in with the background, but not as indiscreetly as the Doctor would like, and again its a nice touch as you remember the lines in an Unearthly child where the Doctor mentioned it hasn't changed.

The Doctor and Susan arrive in Bridgetown, literaly a town built on bridges, and the people need the rain to come, its up to the Doctor be the rainmaker.

I quite liked this, the idea of the town is good, a simple setting for an early adventure. I would have liked this to have been longer, the town and its people explored more, the plot itself isn't particularly intricate. Susan makes a friend but isn't quite who she thought they were.

I do like the early stories - there's an innocence to them. I enjoyed this.