The Passenger of U-977

Carlos Barocelli - Artist
Rodolfo Santullo - Writer
 
108 PAGES
 
A mysterious passenger aboard U-977 plunges its crew into terror on a 66-day submerged journey. WWII ends, but their nightmare begins.
 
The Passenger of the U-977 is based on the real case of the German U-boat of the same name arriving in Mar del Plata, Argentina, after WWII ended in 1945. Its crew had sailed without surfacing for 66 days, and that fact is the trigger for the premise of this novel of horror and fantasy by Rodolfo Santullo and Carlos Barocelli. 
What is it that forces Captain Schäffer not to surface? Who is the mysterious passenger the ship is carrying? 
 
Why were there no sailors at the time of arrival?