Multiverse
1) Hell's gate
GATEWAY TO HELL'S FURY
The Union of Arcana has expanded through the portals linking parallel universes for over a century and a half. In that time, its soldiers and sorcerers have laid claim to one uninhabited planet after another—all of them Earth, and in the process, the Union has become the most powerful, most wealthy civilization in all of human history. But now the Union's scouts have discovered a new portal, and on its far side lies
...Entry #3 in the popular Hell's Gate series by 28 times New York Times best-selling author David Weber and Joelle Presby.
The war between magically-gifted Arcana and psionically talented Sharona continues to rage. The dragon-borne Arcanan assault across five universes has been halted at Fort Salby by a desperate defense, but at atrocious cost. One of those costs was the life of Crown Prince Janaki, heir to the newly created Sharonian Empire,
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