Patrick Ness has been announced as the fifth writer of Puffin's 50th Anniversary eBook series, writing for the Fifth Doctor, Peter Davison. His short story is entitled Tip of the Tongue. The book synopsis reads:

In 1945, a strange new craze for Truth Tellers is sweeping the kids of small-town America. The Fifth Doctor and Nyssa soon arrive to investigate the phenomenon, only to discover that the actual truth behind the Truth Tellers is far more sinister than anyone could have imagined…

Ness commented "The Fifth Doctor is always the Doctor I thought most likely to be a novelist. People sometimes call him slightly passive, but I think it's more that he's observing, watching, waiting on the fringe to make his move. Just like any good writer. Which is why I've made this story one of those – which I've always liked – where the Doctor stays a bit out of the action and we see what happens through a non-canon character and get a whole different point of view of all the strange things happening. It's a bit how it feels when you watch the show as a young viewer."

Ness is best known for writing the Chaos Walking trilogy and A Monster Calls. You can read Puffin's summary of Patrick Ness here:

Born in Virginia, USA Patrick Ness spent his upbringing in the states of Hawaii, Washington and California before moving permanently to the UK. He is the author of the Chaos Walking trilogy which established him as one of the most original and exciting writers of today. The trilogy has won many awards including the Guardian Children’s Fiction Prize, the Costa Children’s Book Award, the Booktrust Teenage Prize and the CILIP Carnegie Medal. Patrick’s sixth book A Monster Calls received high critical acclaim and is the winner of the Children’s Book of the Year Award at the Galaxy National Book Awards, the Red House Children’s Book Award and the UKLA Children’s Book Prize. In June 2012, A Monster Calls became the first book ever to win both prestigious CILIP Carnegie and Kate Greenaway Medals. His highly anticipated new novel for adults, The Crane Wife, was inspired by a Japanese folk tale and just published by Canongate in April 2013. A daring new YA novel More Than This is forthcoming later this year from Walker (Candlewick in the US). 

The eBook will, as usual, be released on the 23rd, and be priced £1.99. A short video introducing it will be released on the 11th.