Start Trek Voyageur, tome 6

When sensors indicate a possible wormhole nearby, Captain Janeway is eager to investigate—hoping to find a shortcut back to the Federation. Instead, she discovers a solar system being systematically pillaged by the warlike Akerians. The last thing Janeway wants is to get caught up in someone else's war, but to check out the wormhole—and to protect the innocent inhabitants of Veruna Four—she has no choice but to take on the Akerians. But who knows what unexpected dangers lurk beneath the crimson glow of the murdered sun?