The sudden appearance of a dangerous gravity bubble causes the TARDIS to dematerialize aboard a ship of the Earth Empire on an emergency mission to deliver vital serum to a plague-ridden world. Before the adventure is over, The Doctor and his Companions must contend not only with the death-dealing gravity bubble, but with the ship's paranoid computer, space pirates, and an attack by androids as well.
Not mentioned on the back cover blurb is that this adventure prominently features the Doctor's old foes, the Cybermen.
Ray Winnininger Design Consultants
Bill Karth and Stan Kowalski Cyberman created by
Kit Pedler and Gerry Davis Writing
Ray Winnininger Editorial Staff Editor in-In Chief
L. Ross Babcock III Editing
Donna Ippolito Proofreading
Donna Ippolito Production Staff Layout and Pasteup
Todd Marsh Cover Art
David Deitrick Illustration
Todd Marsh Typesetting
Karen Vander Mey
Special thanks to the gang at Northwestern University