Although earthquakes are common in Southern California, the tremors that woke Bill Marshall from a sound sleep were different. Hordes of unworldly monsters invade his home desperate to kill him and his family. Miraculously, Sentinel Lance Allright arrives in time to stop the attack.The Earth Heartstone has been broken. To prevent further incursions, Bill and Lance must step through the stone and discover why these events are happening. They travel to an ancient world and face the same attackers seeking revenge against the most vile and powerful Beings in the universe. But why attack Goola and Earth?Heartstone is a journey of discovery, which will forever change Bill Marshall's view of life and the universe. While unspeakable evil may wait around each corner, the power of good and the stones lies within each of us.