The Box of Terrors (audio story)

 was a Special Release from The Audio Novels for the 60th Anniversary of Doctor Who.

It was written by Lizzie Hopley and featured the Third Doctor, Fourth Doctor, Sarah Jane Smith and Omega.

Publisher's summary
After being framed for the destruction of an entire civilisation, the Third Doctor and Sarah Jane follow a strange comet to planet Earth.

Meanwhile, the Fourth Doctor and his Sarah Jane are called to an intergalactic emergency: the beacons protecting the 'Sand Box', are failing.

When the TARDIS crashes to earth before his eyes, the Fourth Doctor is reunited with his former self and another Sarah Jane. But are the four of them enough to keep the Sand Box closed and whatever is within from getting out?

Plot
to be added

Characters
more to be added
 * Third Doctor
 * Fourth Doctor
 * Sarah Jane Smith
 * Omega

Crew

 * Cover Art - Claudia Gironi
 * Executive Producer - Jason Haigh-Ellery and Nicholas Briggs
 * Music and Sound Design - Steve Foxon
 * Narrator - Jon Culshaw
 * Producer - David Richardson
 * Script Editor - Roland Moore
 * Writer - Lizzie Hopley
 * Senior Producer - John Ainsworth
 * Omega created by Bob Baker and Dave Martin

Worldbuilding
to be added

Continuity

 * The Third Doctor previously met Omega in The Three Doctors.