Click here to buy Vienna - The Memory Box for our festive special offer price of £2.99:

Berkeley Silver, one of the richest men in the Earth empire, lies dead in the Penthouse Suite of the Galileo space-hotel. Law Enforcement Officers Detective Captain McGinnis and Detective Sergeant Mead are called in to investigate – but it seems to have been the perfect crime. Even when subjected to a memory scan, everybody in the space-hotel has an alibi for the murder.

Which means it can only have been the work of one woman. The most accomplished – and the most glamorous – bounty hunter in the galaxy. Her name is Vienna Salvatori. And she has a little rule; nobody gets to hear her name and live...

If you've enjoyed this title, or are curious about others, then Vienna's first Big Finish appearance - in our Doctor Who main range - was Doctor Who - The Shadow Heart and is available on CD or Download.

Vienna's own dedicated range, starring the wonderful Chase Masterson, can be seen here, including a special pre-order price on Vienna Series 2 due in February...

Check back tomorrow for the fourth day of Christmas, when we unveil another special offer...