The Labyrinth Makers by Anthony Price
No secret remains buried for ever... The award-winning first book from the author of OTHER PATHS TO GLORY.
When an RAF Dakota, presumed lost at sea in 1945, is discovered in a drained lake in Lincolnshire, together with its pilot and a cargo of worthless rubble, it falls to David Audley of the MOD to puzzle out just why the Russians are so interested, and what the plane was carrying that is important enough to kill for.