BOOK 1: Prosper Station With Hallowmas approaching, time travellers Azur Moonstorey and companions exit the local library to board the midnight train bound for 19th-century Prosper Station. Their mission: to rescue Azur's sister from the eerie dimension Vapourlea. BOOK 2: Black Springs Abbey After her harrowing rescue from Vapourlea, Hilma Moonstorey is still beset by anxiety and insecurities. Encouraged to take a position at Black Springs Abbey by young police constable Garth Mayfield, she soon discovers that the dilapidated abbey houses not only elderly nuns but ghosts and dark secrets.