Mirren’s beloved great-aunt Violet is seriously ill. Her one Christmas wish is to be reunited with a long-lost hand-illustrated book from her childhood, a challenge Mirren gladly accepts to give Violet some much-needed festive cheer. With no sign of the cherished volume online, Mirren falls into the fascinating world of rare books. From London to snowy Hay-on-Wye and Edinburgh’s cobbled streets, she chases leads from bookshop to bookshop—and bumps into mysterious, charming Theo, who, unbeknownst to her, is searching for the same book for reasons of his own…

They may be twins, but Lizzie and Penny Berry are complete opposites. Penny is the life of the party, while quiet and thoughtful Lizzy is often left out of the crowd. The one trait they do share is a longing to do something spectacular with their lives, and as far as these two are concerned, there’s no better place to make their dreams come true than London. Presented with a once-in-a-lifetime house-sit at their grandmother’s home in a desirable London neighborhood, it finally seems Lizzie and Penny are a step closer to the exciting cosmopolitan life they’ve always wanted.

Faced with the harsh reality that there are 25,000 more women than men in London, Katie’s dating prospects are at an all-time low. While she’s glad it’s not a man’s world anymore, it wouldn’t hurt if there were more eligible bachelors. More likely to get murdered than married, according to gleeful media reports, Katie resigns herself to the fact that there’s no sex in the city for her and decides to head for the hills - or the Scottish Highlands to be exact.

1950: Margaret Devonshire (Megs) is a 17-year-old student of mathematics and physics at Oxford University. When her beloved eight-year-old brother asks Megs if Narnia is real, logical Megs tells him it’s just a book for children, and certainly not true. Homebound due to his illness, and remaining fixated on his favorite books, George presses her to ask the author of the recently released novel The Lion, the Witch and the Wardrobe a question: “Where did Narnia come from?”

Maisie Dobbs got her start as a maid in an aristocratic London household when she was thirteen. Her employer, suffragette Lady Rowan Compton, soon became her patron, taking the remarkably bright youngster under her wing. Lady Rowan’s friend, Maurice Blanche, often retained as an investigator by the European elite, recognized Maisie’s intuitive gifts. The outbreak of war changed everything. Ten years after the Armistice, in the spring of 1929, Maisie sets out on her own as a private investigator, one who has learned that coincidences are meaningful, and truth elusive.