The mystery of “thefourth” has finally been cracked. BBC Worldwide has announced the release of a limited run (5000 units) Fourth Doctor Time Capsule set.

The set includes:

An exclusive post-regenerative Fourth Doctor action figure, wearing Jon Pertwee’s trademark frill-fronted shirt.

A Fourth Doctor sonic screwdriver.

An audio version of classic Tom Baker story Genesis of the Daleks.

Novel Tomb of Valdemar by Simon Messingham, set during the Doctor’s search for the Key to Time.

Art cards of all the Fourth Doctor’s companions.

And a letter from Tom Baker himself.

The Fourth Doctor Time Capsule will be released 29 July 2013.