The water world of Coralee is the showpiece planet of the
colonies - two suns, unspoilt beaches and a thriving tourist culture.
The Doctor and Ace arrive intending to have a proper holiday, but when
the Doctor joins an archaeological expedition conducting a dig at a
sunken temple, he soon realises that, beneath the surface, something
is very wrong. An ancient and terrible weapon has been revived and every
living creature on the planet is at risk.
Who are the aliens that wait in the asteroid field? What is the mysterious creature
that stalks the shadows of the colonies? Who has unleashed the devestating power
of the Krill?
Out in the deep ocean there is a storm brewing, and the Doctor is not sure if anyone will
survive.
Featuring the Seventh Doctor and Ace, this story takes place after the
BBC Doctor Who novel Matrix.