Ricksted's Syndrome children are slow to acquire normal human language but can understand non-human language. When invasion by hostile viking-like aliens is imminent, SETI scientist receive a warning message from a friendly alien but it sounds like gobbledygook! Two Ricksted children are able to come to the rescue. The USA president wants to nuke the aliens - not a good idea! The invasion starts just as the Ricksted children (with a little help from friends) have a breakthrough. This is NOT a children's book!