The Final Fury (Star Trek Voyager, #9; Invasion, #4)

For ages they have sought to claim our worlds. Now, at last, we take the battle to them. . . .
Far from the Federation's desperate war against the invading Furies, the crew of the "U.S.S. Voyager" TM encounters something they never expected to hear again: a Starfleet distress call. The signal leads them to a vast assemblage of non-humanoid races engaged in a monumental project of incredible magnitude. Here is the source of the terrible invasion threatening the entire Alpha Quadrant -- and, for the "Starship Voyager" TM, a possible route home.
But soon there may not be any home to return to . . .