Storm in a sorting-hat a familiar saga

Hermione Grainger married Ron Weasley but should she have married Harry Potter?

J.K. Rowling says she regrets yoking Hermione to Ron. But should authors leave well alone, asks Boyd Tonkin.

Do authors own their characters? And if a writer retrospectively meddles with the fate of a beloved figure, should fans pay attention?

Cauldrons have spluttered and wands drooped all over the Potterverse since J.K. Rowling said that she should never have married Hermione Grainger to Ron Weasley at the end of Deathly Hallows.

Instead, Harry himself should have clicked with Herm.

"I wrote the Hermione-Ron relationship as a form of wish fulfilment," Rowling now says. "For reasons that have very little to do with literature and far more to do with me clinging to the plot as I first imagined it, Hermione ended up with Ron."

This storm in a sorting-hat may prompt some Muggles to reflect that Potter maniacs should get a Rowling-free life. But the hurt and outrage at this instance of authorial hindsight points to a very modern form of an ancient practice.

Since the days of The Odyssey and The Iliad, epic narrative cycles have spun off endless new incarnations for the people and plots within them. Readers and hearers have always made the storyteller's myths their own right up to the fan-fiction websites that rewrite Jane Austen's novels as vampire-slasher melo-dramas or recast Kirk and Spock from Star Trek as long-term lovers.

So why should JKR's fanbase fret if she changes her mind? Enter modern intellectual-property law. Since her early battles with the pirates over rip-offimerchandise Rowling has - for good, self-protective reasons - turned into a vigilant controller.

This fierce defence of copyrights has led her to place an unusually heavy hand on the post-books trajectory of the wizard and his chums. Notably, the 2012 launch of the Pottermore website - with Sony - signalled an intention to manage the entire Potter experience for dedicated followers.

In return, they gained access to extra chunks of back-story and an ever-expanding variety of interactive treats. Vitally, Pottermore became the sole distributor of Rowling's e-book editions. This territorial stranglehold has clearly worked for many fans. Dutifully, they feel dismay when the all-powerful brand manager reveals her second thoughts.

Rowling is not the first adored bestseller to seek to tweak her published work. Charles Dickens - one of the first modern examples of a literary giant whose characters broke free to live their own pop-cultural lives - revised the ending of Great Expectations.

Again, the twist turned on marriage. In the 1861 original, sadder-and-wiser Pip and his ice queen Estella definitively part. In the revision, they seem to get together - although Dickens' ambiguous line "I saw the shadow of no parting from her", does leave other options open.

From Peter Rabbit and Poirot to Holmes and Bond, the money-spinning icons of modern literature have fallen one by one into the hands of franchise lawyers and estate enforcers. But the Hogwarts crew have joined this select company with unparalleled swiftness.

Uniquely, Rowling has also overseen every aspect of their multimedia marketing. Hence, perhaps, some disgruntled fans' belief that her backtracking opinions have the power to sway their private fantasies.

However, only the obedient will really care.

Go to harrypotterfanfiction.com and you will find (as of yesterday) 81,472 entirely unauthorised Hogwarts tales - all beyond the reach of the Pottermore police.

- Independent