Candy Jar Books are celebrating the success of the first of their Lethbridge-Stewart novels, ‘The Forgotten Son’, by offering fans a free 65-page e-book.

‘Top Secret Files’ is available from their website or can be downloaded on Kindle for 99p.

The e-book features previously unpublished material, as well as an extended short story first published in Doctor Who Magazine in February. It also includes a special, previously unreleased interview in which Doctor Who director Graeme Harper talks about the actor who played Brigadier Lethbridge-Stewart, Nicholas Courtney.

The new series of novels revealing the untold story of iconic Doctor Who character Colonel Alistair Lethbridge-Stewart was announced last year.

Hayley Cox, senior publishing co-ordinator with Candy Jar Books, commetned: “The response to ‘The Forgotten Son’ has been fantastic – over twenty really positive reviews in just over a month! It was so nice, in fact, that we decided we wanted to give something back to the fans, and so we put together this ebook which acts as both a thank you to those who’ve already bought the first book, and an introductory pack for those who have yet to commit to the series.”

The new season of Doctor Who began filming in Cardiff in January and will air on BBC One this autumn.

> Here’s everything we know about Season 9 so far.

What did you think of the e-book? Let us know below…