In this final episode, the action starts with Tom realising how much destruction he caused. But what will happen to Medusa?

This episode opens with Tom and Hesta in the Jenny Haniver, they are set on course for London.

Again we start on a rainy London, awaiting Valentines return. After all she has discoverd Catherine is not as pleased to see her own father as she once thought she would.

Catherine is reminiscent of how her and Bevis have been on their journy of discovery, whilst everyone else is in a mad rush to protect there belonings from being burnt in Londons boilers.

We re-join the story in a wet cold London, just after the first test of Medusa.

Shrike is still chasing after Hesta, announcing London has plans for her.

Pleased with the distruction Hesta has created, Shrike has made his way through the marshes.

Excitment builds in London, with catch after catch. This must what be Valentine was hunting for?