The Missing Romanovs

The Romanovs, Royal family of RussiaThe Legend:
In July, 1918, the Bolshevik government of Russia announced that they had executed Czar Nicholas Romanov II and his entire family, thus ending the lives of the last royal family of Russia. But did the Bolsheviks lie? No bodies were displayed... had the Romanovs escaped? Or, if the Czar and his wife were executed, could just one or two of their children have escaped?