Following the death of her parents in a tragic firework accident, nine and a half year old Welsh girl, Dotty Parsons, is sent to live with her Great Uncle Winchester at The Calendar House - a vast old country house in deepest, darkest Yorkshire. Once there, Dotty is disturbed by noises coming from the chimneys and soon suspects everything is not as it seems. The cook tells her the noises are just jackdaws nesting. But in December - surely that can’t be right, can it? Since its initial publication in 2015, DOTTY and the Calendar House Key has received the Literary Classics Silver Award for children's fantasy fiction and Honourable Mentions at the Los Angeles, New York, Amsterdam and Paris Book Festival Awards.

All is not well in the world of The Calendar House. There’s a rogue sweep on the loose, and they’re not just stealing trinkets from the houses they enter, they’re stealing the chimneys, too! To add insult to injury, Little Joe Raman from the corner shop on Dotty’s beloved Wyvern Road has gone missing and nobody knows why. It appears Dotty has a lot to contend with. The Council of Sweeps are looking for answers but it seems there aren’t any to be found. Has Joe been abducted by thieves, or is there another reason for his disappearance? And can Dotty stop the Chimney Thief, before all the portals into the world of the ordinary folk have been sealed – forever. Award-winning children’s fantasy fiction from #1 bestselling children's author, Emma Warner-Reed. Follow Dotty as she is strives to unravel the mysteries of the Calendar House: a place filled with secrets, danger and a just a little bit of sweeps’ magic!

Dotty is being haunted by disturbing visions. To make matters worse, a strange illness is taking over Dotty’s new school, and her classmates are determined to hold her responsible. It's all change for Dotty, as Great Uncle Winchester decides it's high time she went to school. But the transition back into school life isn't easy: A mystery sleeping sickness seems to be claiming a new pupil almost daily. Dotty's classmates are convinced she has something to do with it, and Dotty isn’t entirely sure they’re wrong. Is there more to Dotty's dreams than meets the eye? And can a little bit of sweeps' magic save the day?

It is indeed a very lucky day at the Calendar House but the question is, for whom? Spend one more magical day with Dotty and Geoff in the grounds of The Calendar House and find out: what Pip is up to; why Mrs Gobbins is upset; how Kenny the gardener loses his breakfast and what Great Uncle Winchester is doing in the game larder! Unputdownable!