The Great Showman (and The Mermaid in the Glass Case)

As a young man of just twenty-three years, Fredrick Joseph Salt is longing for adventure. Growing a little weary of his position as an assistant to the registrar at the British Museum. He dreams of emulating his hero Charles Darwin and exploring the natural world.
When Frederick hears the news that P. T Barnum, the 'Great Showman' from the Ringling Bros. Circus, the self-proclaimed "Greatest show on earth" is coming to London, he cannot believe his luck. Even more surprising is the news that his employer at the British Museum wants Frederick to go along on opening night. Both Frederick Salt and his fiancée Rosabella Morland have front row tickets to the most coveted ticket in town. But why?
P.T Barnum the American showman, is known as a confidence trickster and perpetuator of hoaxes, so what interest does the British Museum have in his latest potential publicity stunt? And why is the young and naïve Frederick Salt being sent as the museum's representative?
Meanwhile the beautiful and headstrong Rosabella Morland must conquer some demons of her own.