Katherine Woodfine is the author of the bestselling SINCLAIR'S MYSTERIES series, beginning with THE CLOCKWORK SPARROW which was shortlisted for the Waterstones Children’s Book Prize, longlisted for the Branford Boase Award, and nominated for the CILIP Carnegie Medal. Until 2015 she worked for reading charity Book Trust on projects including the Children’s Laureate and YALC. She was also part of the founding team behind children's books podcast Down the Rabbit Hole. She now combines writing with events and reviewing children's books. Her latest book is NIGHTFALL IN NEW YORK, the final book in the TAYLOR & ROSE SECRET AGENTS series which follows the heroines of the SINCLAIR'S MYSTERIES as they venture into the thrilling world of Edwardian espionage. Find out more at katherinewoodfine.co.uk and @followtheyellow

I love to write stories about ordinary children doing extraordinary things. With any luck, there's a list of all my published books further down my profile page. Find out more on my website or Facebook page I only review books that I have enjoyed; which is why all my reviews are three stars or more.

Caroline Lawrence won a scholarship to Cambridge to read Classical Archaeology, then did a degree in Hebrew and Jewish studies at University College London. She now lives in London with her English husband and teaches Latin, Greek, Hebrew, Art and French to children. Series: * Roman Mysteries Western Mysteries

My journey to becoming an author has been a roundabout one, taking in many other careers. I grew up on the edge of Epping Forest and was that dreamy kind of child who was always writing stories. After reading English at Cambridge, I decided to find out as much as I could about the wider world so joined the Foreign Office and served in Poland. My work as a diplomat took me from the high point of town twinning in the Tatra Mountains to the low of inspecting the bottom of a Silesian coal mine. On leaving Poland, I exchanged diplomacy for academia and took a doctorate in the literature of the English Romantic Period at Oxford. I then joined Oxfam as a lobbyist on conflict issues, campaigning at the UN and with governments to lessen the impact of conflict on civilians living in war zones - a cause about which I still feel very passionate. Married with three children, I now live in Oxford between two rivers, surrounded by gargoyles, beautiful sandstone buildings and ancient trees. My first novel, 'The Diamond of Drury Lane', won the Waterstone's Children's Book Prize 2006 and the Nestle Children's Book Prize 2006 (formerly known as the Smarties Prize). I was also chosen by Waterstone's in 2007 as one of their 'Twenty-five authors for the future'. In the US, 'Secret of the Sirens' won the honor book medal of the Green Earth Book Award. My latest series, which starts with Mel Foster and the Demon Butler, about an intrepid Victorian orphan who lives in a household of monsters, won Bronze in the Primary Teacher awards in 2015. The next part, Mel Foster and the Time Machine, has set the time-dial to arrive in 2016.

Robin's books are: Murder Most Unladylike (Murder is Bad Manners in the USA), Arsenic for Tea (Poison is Not Polite in the USA), First Class Murder, Jolly Foul Play, Mistletoe and Murder, Cream Buns and Crime, A Spoonful of Murder, Death in the Spotlight and Top Marks for Murder. She is also the author of The Guggenheim Mystery, the sequel to Siobhan Dowd's The London Eye Mystery. Robin was born in California and grew up in an Oxford college, across the road from the house where Alice in Wonderland lived. She has been making up stories all her life. When she was twelve, her father handed her a copy of The Murder of Roger Ackroyd and she realised that she wanted to be either Hercule Poirot or Agatha Christie when she grew up. When it occurred to her that she was never going to be able to grow her own spectacular walrus moustache, she decided that Agatha Christie was the more achieveable option. She spent her teenage years at Cheltenham Ladies’ College, reading a lot of murder mysteries and hoping that she’d get the chance to do some detecting herself (she didn’t). She then went to university, where she studied crime fiction, and then worked at a children's publisher. Robin lives in England with her husband and her pet bearded dragon, Watson.