Doctor Who: The Fifth Doctor Adventures: Helter Skelter

The Asteri has arrived on Earth. A new threat with immense psionic power and the ability to grant wishes, as it feeds on the life force of those caught in its psychic field.

Such power in the wrong hands could lead to disaster. In a time of tragedy and loss, some will pay any price to see their deepest wishes come true.

Field of Miracles by Lauren Mooney and Stewart Pringle
The Doctor, Tegan and Turlough arrive in the quaint village of Heatherington in 1951. But something strange is happening. In an England of post-war austerity, Heatherington is thriving - the shops are full of produce and everyone seems to have everything they’ve ever wanted, even if what they've wanted is the dead to return to them.

The Doctor and his friends must stop the creeping invasion of the Asteri, wish-granting crystalline organisms of awesome destructive power, before they extract a terrible price from the villagers.

Helter Skelter by James Moran
When a bio-engineered planet and amusement park undergoes a critical malfunction, the entire planet tears itself apart - and the Doctor, Tegan and Turlough are thrown back to their arrival, trapped in a repeating time loop.

But for some reason, only Tegan can see the loop, not the Doctor – it has been hidden from him somehow. So why can Tegan see it, and how is she going to fix it?

Land of Fools by Lauren Mooney and Stewart Pringle
The TARDIS arrives in London, 1980, but something has gone wrong with the timeline. The city is a quasi-police state, overseen by a mysterious new company, Luqos, which promises miraculous gifts to its followers.

As Tegan takes off to reconnect with an old friend, and the Doctor teams up with young activist Zan, Turlough is pulled into the heart of Luqos by the shadowy 'M', where they discover an old enemy at work beneath the city.