Overflow has been weaponised. The miraculous and strange radioactive fluid that allows star ships to travel across the universe in the blink of an eye has properties not unlike antimatter. Its potential as a world killing weapon did not go unnoticed. Now, the American Government has begun construction of a missile capable of immediate extragalactic strike. Russia has nearly completed construction of their own star ship, and also intends to weaponise the excess fluid, but Russia is not the enemy. Earth has been directly threatened by a new and unknown alien presence, beings who are also apparently capable of Overflow travel. A message threatening invasion of the Earth has been transmitted from somewhere in the Andromedae constellation. Meanwhile on distant Anahita, an ancient and abandoned city complex constructed of solid crystal has been discovered buried under an old growth forest. Undeniable evidence connects it directly to the strange new threat from Andromedae. Canadian author Samuel Blondahl provides a powerful story with themes that affect us all. Do not miss this stunning conclusion to the Mercury trilogy.