Pupils had a chance to meet the author at a Mystery Challenge question-and-answer session at Hareside Primary School and received signed copies of an Elen
Her organs were donated according to her wishes and Rhys and his family set up Cronfa Elen
's Fund) in her memory to support people who need an organ and donor families in Wales.
Married for 31 years before she met Elen
, Jenny-Anne, who used to work as a chemist, was nominated for the New Year gong by the NHS Centre for Equality and Human Rights in Wales.
wedi dweud ei bod hi"eisiau edrych ar sut mae ein bywydau wedi'u cydblethu a sut y gall gweithredoedd arwain at ganlyniadau anrhagweledig dros amser.
Wrapped up with a woolly hat and baggy trousers, Elen
, 37, was barely recognisable as the underwear model who was engaged to the star until 2008.
Rob, 44, said: "When Gwen did her school project, Elen
helped her with the research and they had both come to the conclusion that organ donation was a good thing.
At present, Elen
and daughters, Luna, six and four year old Isla, currently live in west London, near to Chelsea footballer Frank and Christine.
, 36, hit out at the couple, saying that she had been "deliberately stopped" from speaking to daughters Luna, six, and Isla, four, on Christmas Day.
They've taken to calling her mum, which is incredible from Elen
informing him she didn't have her mobile on her but could be contacted on this other number.
The best that can be said for this London Marathon running outfit is that at least it is being worn in a good cause and all credit to Elen
for her charity effort.
With just hours to go until the annual London Marathon, stars like Elen
Rivas and Will Young are preparing for the 26.
But showing how much she loves him, Elen
didn't even mind.