You are Dust Jacket #
Counter added 2-1-99
From the Back Cover
    The world of 2165 needed co-ordinators to link the liaison officers from different broad fields. Natasha was a trained nexus officer who became curious about Building 297.

    All her enquiries reached a blank wall . . . literally. Nobody seemed to know what went on inside the tall glass and concrete tower. An important security project of some sort . . But what?

    At last she found a way to enter the building nobody understood only to find a project that had gone unbelievably wrong. The original purpose of Building 297 had long since been forgotten. The operators no longer directed the research in the bleak laboratories, they were in the grip of an unknown power.

    The menace in the sinister tower had reached a crucial stage. It threatened to leak through the concrete and engulf the city . . . perhaps far more then the city. Natasha had to understand the incredible new force, to escape from its citadel and rouse a sceptical, complacent population before it was too late.

    The arrival of the Stranger offered her a terrible choice. Was he her one hope as a potential ally, or had he in some way engineered the menace in the tower?
(British, Badger Books SF-117, 1966)

(USA, Arcadia House, 1968)