Knowing this to be of interest to his superiors, he includes all the details he has in his next report.
This too is becoming more difficult as detector vans periodically appear in the area.
The Kreigsmarine decide to send a small raiding force under the command of Lt Schultz to investigate.
They are accompanied by a scientist Dr Albert von Bratwurst, to study the strange craft and then destroy it.
Approaching the mouth of the creek, commanded by a coastal battery, Lt Schultz decides to sail past on the other side of the river and approach downstream
Patrol activity on the jetty and its surrounds puts paid to this and they are forced to creep past the enemy defences.
The raiders cross the river, narrowly avoiding the river patrols, the moonless night favours them.
They reach a pillbox,manned only by one sleepy lookout, and after a short scuffle, silence him.
The sentry on the jetty has his back to them, so they rush him, at the first sound of a footstep on the wooden surface, he turns, bringing his rifle down. but is struck before he can utter a word.
Corporal Mckenzie on the jetty slips and is hurled into the river, Entry to the X craft is now possible and the Lt and scientist board to examine the interior, Sgt Gruber .lays demolition charges whilst his men form a protective cordon.
Herr Smith looks nervously at his watch, He cannot risk waiting much longer.
They succeed in reaching the dinghies and crossing the river, as they step ashore Lt Schultz looks at his watch.
Any moment now, he counts down the seconds and then!
Either the charges were badly set in the rush or the british managed to find them.
He and his men trudge uphill to the rendezvous,handing over the film to Herr Smith, they proceed to a safehouse, intending to sneak away when the time is right.
The E boat pick up is scheduled for the following midnight.