" ... One September evening in 1785, Jonah Hancock hears an urgent knocking on his front door near the docks of London. The captain of one of Jonah's trading vessels is waiting eagerly on the front step, bearing shocking news. On a voyage to the Far East, he sold the Jonah's ship for something rare and far more precious: a mermaid. Jonah is stunned--the object the captain presents him is brown and wizened, as small as an infant, with vicious teeth...