 Mary recovered during the autumn and winter , and gradually won over George Douglas to her own cause . A contemporary wrote that George was " in fantasy of love wythe hir . " On the night of the escape , Willie Douglas stole the keys and let Mary , dressed as a servant , out of the castle . She was rowed across the lake to where George Douglas and others awaited her , and they fled to Niddry Castle in Lothian . The Castle is one of many in Scotland said to be haunted by Mary 's spirit . 
