The Artifacts of Power includes books Seven, Eight and Nine of the Godsland Series:
The Fifth Magic
Dragonhold
The Seventh Magic

The stars have gone...
Long dormant relics bask in the light of a hundred comets, restoring magics of a previous age. Objects inert for eons become dangers and tools no one can ignore. The use of these artifacts will put everything at risk; all the while providing the greatest opportunity for human advancement in history.
No matter what happens to the people of Godsland, the dragons have plans of their own.

The World of Godsland fantasy series in order:
The Dawning of Power trilogy
Call of the Herald
Inherited Danger
Dragon Ore
The Balance of Power trilogy
Regent
Feral
Regal
The Artifacts of Power trilogy
The Fifth Magic
Dragonhold
The Seventh Magic