The report stated: "development of a large rocket which made a noise resembling that of 'a squadron at low altitude'.
[3] In the summer of 1942, Roth made also contact with another Belgian group, the 'Service Clarence', organized by a policeman named Adolphe Godart and was given the codename 'Oscar 8353.'
Godart contacted London and was informed that it was of the greatest importance to find out where young Roth was employed.
His very next letter created a minor sensation in the 'Clarence' network, for it contained not only a sketch map of the Usedom set-up but also said that experiments were being carried out with 'an aerial torpedo, which moves under its own power and makes a noise as if a squadron of heavy bombers were approaching'.
When Leon-Henri returned from Peenemuende in 1943, the RAF 'Squadron' the SIS's own agentdropping force, offered to collect him from a secret air strip near the village of Sure.
[3] Information was received from Leon Henri Roth and Dr Schwagen,[5][9][11] both Luxembourgish enrolés de force (forced labourers), who had worked at Peenemünde and smuggled out letters describing rocket research, giving conflicting accounts of the size, warhead range and means of propulsion of the device.
[12] Roth was killed by American army fire in 1945 while escaping with two Frenchmen in a German military car,[5][2] after deserting Admiral Scheer.