The adventures of John and Julie were imagined and brought to life through bedtime stories by Don Smith for his daughter Alex. In this, the ultimate John and Julie story, the children finally meet the intrepid Jet Skypack, whose equally action-packed existence was later created by Don for his son Chris. The wimples - mysterious creatures so timid they are rarely seen - have, until now, lived only in the imaginations of Alex and Chris. How will these shy animals cope when they have to ask John and Julie for help?