Nightmare Revisited — Don Galloway

Returning to Earth after their mission of mercy to
Senterra station, Jack Ryder and his friends are
continuing to investigate his father's disappearance,
while hiding from the authorities in the vast
metropolis of Central One.
Complications arise when Lord Somersby makes
his presence known in the 22nd Century and his
involvement in the affairs of the Time-Travellers and
his presence in 18th Century Scotland is finally revealed.

With Nova hidden away in the Western Gate mental
institute following his breakdown and Ossie from
Senterra making an appearance after the destruction
of the station, a spate of subsequent murders point to
an assassin targeting members
of the Oregon crew and anyone closely involved.

Jack, Henry and Samira soon realise that everyone
from the Oregon is in danger, especially the vulnerable
Nova Mitchell, but can they help the young man
before the dark forces close in?