Starpol pocket books /
Tully, John.
Tully, John.Day of darkness.
Tully, John.Death of a lizard.
Tully, John.Killer on Ka.
Tully, John.Land of the Kels.
Aylesbury : Ginn and Company,
1990.
Contents: Day of darkness -- Death of a lizard -- Killer on Ka --  Land of the Kels.