Henry gives Ella one of his two Walkie Talkies. Ella tells Henry to run to the top floor of Sunshine Villas to see whether he can hear her from there! Ella waits and then calls Henry "Hello? Can you hear me? Over!" But, there is no reply. Why doesn't he answer? See how they find out that the Walkie talkies really do work although not quite in the way that they were expecting and how it involves Mr Jackson, Mrs Berg, the twins and especially, Joseph.