In 1940, Jacob and his new friends escape from Miss Peregrine's island and travel to London where they encounter new allies, a menagerie of peculiar animals, and other unexpected surprises.

Grace Sinclair has been callously cast out of her home. Despite the vicar and his wife taking her in years ago, her unsurpassed beauty makes it impossible for her to remain in the vicar's household--with two daughters of their own about to enter Society, the vicar and his wife see Grace as nothing but competition. Thankfully, Grace's estranged Aunt Bell from London has agreed to care for her. But Grace soon learns her situation has just gotten much...

In London, 1890, Sherlock Holmes and Dr. Watson try to stop the fine arts dealer Edmund Carstairs from being harassed only to find themselves mixed up in murder plots and an international conspiracy linking the worst criminals to the highest levels of government.