'It was the hardest book I've ever written' - Author Cecelia Ahern on the sequel to her first blockbuster

Cecelia Ahern has finally written the sequel to her blockbuster 'P.S. I Love You'. She talks to Liadan Hynes about why she thought she never would, about working with her husband, and how she grew up and took charge

Cecelia Ahern among the blooms at Portmarnock Links Hotel, Dublin. Her new book 'Postscript' is released this Thursday. Photo: Frank McGrath

It's hard not to speak in hyperbole when it comes to Cecelia Ahern. She was just 21 when she sold her first book, P.S. I Love You (published in 2004), a novel written after Cecelia had left her college course abruptly, stricken for a time by a series of panic attacks that left her reluctant to leave the house.