SHE has been intriguing her fans for weeks now with posts about her 'top secret' mission but now the Herald can reveal what Miriam O'Callaghan is up to.
The Prime Time presenter has been filming all over the country for a new documentary series entitled Ireland's Greatest.
Miriam has been busy travelling to various locations including Donegal, Maynooth and Oslo as she chronicles the life and times of former SDLP leader and Derry native John Hume.
Hume started off his career as a humble student priest but went on to become a teacher, a human rights activist and was eventually a key broker in the 1994 IRA ceasefire and the subsequent Good Friday agreement. He was a co-recipient of the Nobel Peace prize, along with David Trimble, in 1998.
The new show is a result of a nationwide survey commissioned by RTE earlier this year to find the Top 40 of the greatest Irish people of all time.
Along with Miriam, four other personalities have been tasked with arguing the merits of the five finalists in the study. This will be followed by a Late Late Show debate and a public vote.
Joe Duffy will argue the case for James Connolly; Michael McDowell will campaign for Michael Collins; Dave Fanning will be backing Bono while David McWilliams will be getting behind former president Mary Robinson.
The last leg of her documentary brought Miriam to the Norwegian capital of Oslo, where she posted new pics of her visit to the Peace Museum. Describing it as an "interesting city", she also revealed how much fun she had working on the documentary with a "great team."
But despite an endless string of questions from her nosy Twitter followers as to her new show, she has remained tight-lipped on the project, which was finally revealed at the RTE schedule launch.