A gang of masked men used stolen 4x4s fitted with scaffolding poles to ram-raid some of the most historic stately homes across the country, then vanished into the night. Antiques worth tens of millions were stolen from Waddesdon Manor, home to the Rothschild collection. But one detail set this case apart: a convicted thief turned up at Lord Rothschild's door, still wearing his probation tag, and offered to recover the stolen collection himself…