From the streets of Edwardian London to a library in the distant future, a single book holds the key to the fate of life on Earth. This epic story brings together some of Big Finish’s best-loved characters in an adventure spanning thousands of years!

Abby and her sister Zara are not real people. They were created by pan-dimensional beings to help save space and time. They’ve been blessed with special powers. They can see into people’s heads, even influence their thoughts. And, so long as they’re together, they can go anywhere or when. But the universe is dangerous, unpredictable. Abby and Zara have made mistakes – and many thousands have died. They know they’ve done wrong, that they have made enemies, who scour all of history to find t...

Abby and her sister Zara are not real people. They were made, created by pan-dimensional beings – the Grace – to help save space and time. The Grace gave them special powers. With just a thought they can be anywhere or when in the universe. They can affect people, see into their heads, influence their thoughts... They’re still learning what they can do. Now they've completed their mission, the Grace have left them to fend for themselves. The universe is dangerous, unpredictable. Abby is no...

Once upon a time there were two sisters. They were created by beings called the Grace. Both sisters had magic powers. When they were together, they could do anything. Go anywhere and when. Reach into people's minds, even influence their thoughts. They tried to be good. They tried to do what was right. But even when they tried their hardest to help people there were unintended consequences...

Ciara Jansen stars in a BBC Radio full-cast dramatisation of the classic children's story. When Heidi, a lively orphan girl, goes to live with her grandfather in a little hut high in the Alps she soon learns to live in perfect harmony with her surroundings, leading a carefree life with her constant companion, Peter, a young goatherd. But her happiness is short-lived when she is sent to stay with a rich city family as a companion for the sick Clara. Although she becomes fond of the older gi...