1.   Hence, despite the hype and the hard-hits in the gym this week, mystery still shrouds him as the second fight of his fifth comeback approaches.

2.   Mystery still shrouds the abduction.

3.   Mystery shrouds his death.

4.   Five centuries after his death, mystery still shrouds the life of Vlad the Impaler, a ferocious fighter who managed to check a Turkish advance into Europe.