Julie Myerson's controversial book, The Lost Child, is being rushed out two months early by its publisher in order to cash in on the publicity caused by the outrage over its contents.

The work, which her publisher, Bloomsbury, had originally intended to bring out in May, deals with Myerson's decision to lock her 17-year-old son Jake out of the family home over his use of skunk cannabis. After details of the book emerged last week, Jake described his mother as "insane" and "obscene", while commentators slammed Myerson for what Minette Marrin in the Sunday Times called her "betrayal not just of love and intimacy, but also of motherhood itself".

Bloomsbury has now announced that it will publish the book – subtitled "A True Story" – within a few days. "Given this week's extensive speculation about Julie Myerson's The Lost Child, we felt that it was right to bring forward publication to allow everyone the opportunity to read her brilliant book and consider the complicated questions it raises," it said in a statement. "We are pleased to say that we are making the book available within a few days."

Myerson's narrative intertwines the stories of Mary Yelloly, an artist who died aged 21 almost two centuries ago, with discussion of events in her family's life, and the actions of her own son. "The circumstances are very different, but the questions remain terrifyingly the same," runs the publisher's description of the book. "What happens when a child disappears from a family? What will survive of any of us in memory or in history? And how is a mother to cope when love – however absolute, however unconditional – is not enough to save her child?"

Myerson was longlisted for the Man Booker prize for her 2003 novel, Something Might Happen. Last year she published the crossover novel Out of Breath, about a teenage girl who falls in with a gang of runaway children fleeing reality into an imaginative world that turns out to be just as dangerous.