It is a picture book for adults, a horror story that reads like a movie.
A US navy submarine picks up a distress beacon at the botom of the Mediterranean Sea. They dive down to investigate and find a lost Soviet submarine and a underground complex, a temple or so it appears and then everything starts to go wrong.
Claustrophobic surroundings, mysterious occurrences, Nazi secrets and an ancient civilization that disappeared long, long ago. Unlike many stories of its kind this one delivers an explanation and every thing adds up. Made me look up the god Mot and the Ugarit.
The book also has a nice twist, but I better not spoil that.
Would make a great movie, but it is a very good graphic novel.
Also this is a three part story all in one volume so it is a good buy (my local library only had the first 2 parts and I had to buy it to see how it ends).