They were beaten back from their attempt at conquest. Their military was crushed and thousands burned in the oven of nuclear fire. After the defeat they withdrew and bode their time.
Reaching out with their minds they enthralled others, especially those who possessed wealth and power. "Bring us to you." they whispered. "Take pleasure from our presence."
Conquest would be more difficult this time. The world has changed. Commanding a single emperor is no longer sufficient.
Tina went with her mommy to visit Uncle Fred. He's very rich. Tina especially likes his pretty koi fish. Sometimes they talk to her.