When two seismologists mysteriously vanish in the Mare Frigoris region, Caulder bans all travel into the area, a decision that upsets Dr Heinz Laubenthal who is conducting research in the area but won't reveal what he is working on. Some time later, Laubenthal is killed in an explosion in his laboratory. Investigations reveal that the lab walls were breached from the outside and strange tracks are found leading from the lab in the direction of the Mare Frigoris. As rumours of space monsters begin to disrupt life on the moonbases, Caulder leads a team into Mare Frigoris in search of the truth.
Did You Know?
Tom Hill was born in 1961. See more