What's a twinterview? It's a live interview that takes place on Twitter and we've got a great one lined up a 'twinterview' with top author Marcus Sedgwick, author of Revolver and other great books, as he travels the country talking about his latest book, Midwinterblood.
At 4.30pm on Wednesday 5 October we'll be asking him your questions via Twitter and he'll be replying via twitter - so all questions and answers can only be 140 characters long!
Anyone can follow the interview by searching the #askmarcus hashtag. Just tweet your question to @GdnChildrensBks.
Not on Twitter and want to ask Marcus a question? No problem! Just email us your question for Marcus to childrens.books@guardian.co.uk any time between now and the end of the interview tomorrow and we'll tweet it for you.
Not only will Marcus answer your questions, but we've got limited edition signed bookplates in a hardback copy of Midwinterblood to give away for the best questions!
You can read the full stream of #askmarcus Twitter questions and answers below - or follow the twinterview on Twitter.
Read all the #askmarcus tweets from @GdnChildrensBks live
Read our interview with Marcus about his previous book for teens, White Crow, and watch the trailer for Midwinterblood here:
