Big Finish have launched a weekend sale on many of their book titles. Though none of the books on sale feature the Doctor himself, titles from Big Finish's Bernice Summerfield and Iris Wildthyme ranges are included in the sale.
Among the other Doctor Who related titles on sale is The Coming of the Queen, which features the Fifth Doctor's audio companion, Erimem, back when she was the queen of Egypt. The other Doctor Who related title is Project: Valhalla, which tells a story of the Forge: a Torchwood-like organisation who are far more morally ambiguous than the other alien defence organisations.
All the books in the sale are priced at only £2.99 each, and will go back to full price on the morning of Monday 17th June.