Returning to her research facility on Earth in time for spring migration, Mac believes she is now free to pick up her life again. But the enemy is on the move, destroying planet after planet. And, summoned to a gathering of the Inter Species Union, Mac becomes part of the desperate search to stop the enemy no matter what the cost. But the only help Mac can find may bring destruction as easily as salvation.
Used availability for Julie E Czerneda's Migration
May 2005 : USA Hardback
April 2006 : USA Mass Market Paperback
April 2006 : USA, Canada, UK Kindle edition