Thorgal GN Vol 23 Thors Shield

Jolan and his new companions have arrived safely in Manthor's home. However, harmony isn't the word yet, and the instructions from their new master don't help: their next task can only be accomplished if all five of them work together to open a magical gate, but once they're past that obstacle, only one of them can become the Chosen one - and that by stealing no less than Thor's own shield! Can any of them even do it on their own?