From TARDIS Index File, the free Doctor Who reference.

Deep Blue
Series:	Doctor Who - BBC Past Doctor Adventures
Release Number:	20
Doctor:	Fifth Doctor
Companions:	Tegan Jovanka Turlough Brigadier Lethbridge-Stewart Captain Mike Yates Sergeant Benton
Enemy:	The Xaranti
Setting:
Author:	Mark Morris
Publisher:	BBC Books
Publication:	March 1999
Format:	Paperback Book, 288 Pages
ISBN:	ISBN 0-563-55571-8
Previous Story:	The Wages of Sin
Following Story:	Players

Publisher's Summary

When a lighthouse keeper reports seeing a ball of light plunging into the sea off Tayborough Sands, UNIT sends Mike Yates to investigate. The last thing he expects to find there is an old friend — with a new face...

The Doctor and his companions arrive on a pleasure beach in the 1970s, hoping for time off after their latest adventures. But they do not get to relax for long. Violent incidents are at an all time high in the area and people are going missing - or else changing into something more than human...

The Doctor soon realises a sinister presence lurks in the cold seas off Tayborough Sands - a presence with sinister designs on humanity.

Characters

• The Doctor
• Tegan Jovanka
• Turlough
• Brigader Lethbridge-Stewart
• Mike Yates
• Sergeant Benton

References

• The Doctor uses the IRIS machine.

Notes

to be added

Continuity

• From UNIT's point of view, this story takes place somewhere after DW: The Green Death.

Timeline

Story placement is given on rear cover of novel.

• Deep Blue occurs after: DW: Warriors of the Deep
• Deep Blue occurs before: DW: The Awakening

External Links

• Doctor Who Reference Guide - Detailed Synopsis - Deep Blue
• The Whoniverse - The Discontinuity Guide to: Deep Blue