Thorgal Graphic Novel Volume 16 Arachnea

"A very literal trip to hell for Thorgal. Thorgal, his family and their friends Darek and Lehla have left their island to sail south and look for a safer place to live. After a storm scatters them, Thorgal and WolfCub's boat flounders on reefs at the foot of a strange, mist-covered cliff. One perilous climb later, the little girl is trapped by a mysterious, invisible force, and her father, after going for help, discovers a very curious city cut off from the world."