Invasion

Nothing's the same for Robbie and Josh Stevenson with Allen Strange around, not even a trip to the Natural History Museum. The alien-turned-human is delighted with the exhibits showing the early days of his host planet -- until he recognizes the fabulous Mojave Diamond as an ancient Arubii signaling device. If it is activated, the diamond will call the insect-like aliens to colonize Earth and destroy human life. The device seems to be broken, but Allen protects it with a Xelan alarm to be safe.