The Mystery of the Invisible Enemy by Bruce Campbell (World Distributors, c1960) A Ken Holt Mystery for Boys
The Mystery of the Invisible Enemy
World Distributors, 1st (UK) edition 1959
A title in the ‘Ken Holt Mystery’ series originally published in the United States by Grosset & Dunlap but were published some years later for the British market by World Distributors. Although the edition is not stated, with just a copyright date given, my understanding gleaned from later printings of other titles in the series is that reprints are clearly stated.
Hardback in dustwrapper. 185pp. 7.5 x 5.25 inches approx. (194mm x 134mm).
Dustwrapper showing some light wear and rubbing with a few short edge tears, some grubbiness evident especially to rear panel; offsetting to endpapers; prize label to front free endpaper (usefully dated).
Nonetheless, remains a reasonably nice copy in collectable condition.