Hello! I am delighted to be able to tell you that the new Riverdale book, A Riverdale Christmas, is out today! The ninth book in the series - have I really written that many?! - sees Poppy both competing for a place on the school showjumping team and helping with a children's charity run by Waterby's celebrity resident, Instagram star Gaz Winters. Gaz, who first made an appearance in The Mystery of Riverdale Tor, was such fun to write that I knew he would be making a return.