Kate Kerrigan's laptop has been left in a Dublin taxi by the renowned author earlier today.
The writer realised it was missing after she left Hueston train station and travelled via taxi to Brown Thomas department store at around 1.10pm.
Her new novel - that is reportedly not backed up - was saved on the missing laptop which was in a black bag.
The Irish novelist and friend of fellow writer Cecelia Ahern has begun a social media campaign to help find the computer.
"With @Cecelia_Ahern, Dublin after leaving laptop with not backed-up novel in taxi. In bits. From #heuston to BT's at approx 1.10. #PleaseRT" she tweeted.
Cecelia Ahern immediately promoted the appeal on her Twitter page with the hashtag 'LostNovel'.
Irish Rail have responded to pleas on Twitter but have confirmed that there is no "CCTV out where the taxis are".
Bestselling author Marian Keyes has also joined in with the tweet: "Can anyone help?! @katekerrigan left her laptop in Dublin taxi, Heuston to BTs trip. Her unbacked-up novel is on it! She's frantic!"
Mother-of-two Kate has described the taxi driver on Twitter as "a good looking Dub" in his thirties with "a shaved crop", possibly driving a grey Avensis.
"Checking CCTV at BT's now & praying!," the well known author posted.