Blessing of the Campanella - Season 1 Episode 4 Within the Darkness

The clan is going on another quest from an old woman who is one of Agnes's most avid fans. They are to obtain a supply of hot spring crystals and go to an abandoned mine to obtain some. While mining these crystals they happen upon a hidden chamber with a large crystal in its centre, which has a complex flow of Ale energy emanating from it. Before they can examine it further the mine experiences subsidence due to the rains, and the ceiling cracks, and they try to get out, but Agnes and Leicester are separated from the others by a cave-in. The two of them manage to find another way out, and see a rainbow at the exit, and rejoin the others.