Twice the Spylet

"Jane Blonde, Sensational Spylet, has just met her secret twin! When the sisters are posted to an Australian sheep farm, Janey’s instincts are on red alert. There’s something weird about those sheep. Come to think of it, there’s something suspicious about Jane Blonde’s twin . . . Janey can raise an invisible shield with her spy- ring and she can burrow through the earth with her spy-drill boots - but will incredible gadgets save her this time?"