Invasion from Planet X(1998)
(The first book in the Misadventures of Willie Plummet series)
A novel by Paul Buchanan and Rod Randall
Reports of UFOs in 13-year-old Willie's hometown begin to appear on RV. Are they real? The Air Force sure thinks so! Willie and his friends are sure surprised when they realize there's been a big mix-up..and they're right in the middle of it!.
Used availability for Paul Buchanan's Invasion from Planet X
January 1998 : USA Library Binding
January 1997 : UK Paperback
July 2015 : USA, Canada, UK Kindle edition