Silicon Strike

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

The alien plant-based menace known as the Celloids have been eradicated.  Or have they? Did they leave something behind even more destructive?

With the advanced Lytherian race now in disarray, can Earth's only remaining ships, the Defiant and the Phoenix stop this new threat?

And who is the controlling force behind it all?