BASTION OF THE DEEP: Seventh Hall Chronicles 3

The final year has come and the mine has failed to find what it was tasked with.
Now Dorian Ironstrike and the others feel the weight of time upon them, and if they fail the King of Zirad will be displeased.
But there is something else out there, pulling strings and making plans, and they know that they won’t be safe for long.
They will have to fight against time and the odds, dig deep, and discover the treasure that they were sent to find, all while preparing for an attack they dread.
Will they be forced to return to the dangers of the deep, or will the earth give up her secrets to them before it is too late?