Gwyneth Rees has 5 audiobooks on Listento.it, narrated by 3 narrators. The most-rated is Fairy Dust.

Evie gets a wonderful surprise when she goes to stay at her grandma's house. Fairies appear in the night. They are dream fairies, and they live at the bottom of Evie's bed. Even better, Evie can go and have magical adventures with them in fairyland! Soon Evie discovers that Grandma can see the fairies, too. But will they still be there when Grandma returns from hospital? And how can Evie make sure that their special brand of fairy magic will stay with Grandma forever?
©2005 Gwyneth Rees (P)2014 Audible, Inc.

Down in the watery blue depths of the ocean is Tingle Reef - home to young mermaid Rani and a whole host of fishy friends! It's an underwater world of magic and mystery - where Rani's adventures are about to begin.... Rani has always known that she's different from the rest of her family. Her flowing red hair and glowing amber eyes stand out from the other mermaids, who have golden hair and eyes like the sea. But Rani's about to find out that she's more different than she realised - she's got magic powers!
©2001 Gwyneth Rees (P)2014 Audible, Inc.

Emma knows that having superpowers isn't always easy, especially when you have to keep them secret. But it's even harder when your mischievous little sister can't help using them in the naughtiest of ways. And when Saffie makes the new nosy neighbours' garden shed come to life and hop over the hedge, it's up to Emma to cover its tracks before it's too late! Being a big sister has never been so heroic!
©2012 Gwyneth Rees (P)2012 AudioGO Ltd

Cosmo the witch-cat is delighted that evil Sybil - the most terrible of witches - is safely in prison. In fact, she's even been fitted with a special tag, which means that if she tries to escape she will be turned into a frog. But then mysterious goings-on are reported on Witch News. Baby witches are being visited by strange midwives and having their toenails clipped and stolen. Cosmo is sure something sinister is afoot. Could a highly wily witch be brewing a spectacularly spooky spell?
©2006 Gwyneth Rees (P)2014 Audible, Inc.

Do you believe in fairies? Rosie does but her mum doesn't. Sometimes, though, real life is stranger than a fairy tale.Rosie didn't really want to move to a tiny cottage by a loch on the isle of Skye. But the place is so beautiful, and her mum is so much happier here, Rosie just wishes Mum hadn't left Dad behind in London. Then Rosie finds a tiny stripy sock in her bedroom, small enough for a mouse to wear. And out by the loch, she sees something out of the corner of her eye; it looks like a butterfly, or a small bird, only different. Rosie's always believed in fairies but even she can't believe what happens after she rescues one from the neighbour's cat. And Mum certainly doesn't believe Rosie's "tall tales".
©2004 Gwyneth Rees (P)2014 Audible, Inc