As soon as Ivy and her brother Seb set foot back in the mysterious underground city of Lundinor, they know that something has changed . . . Where before there were cobbled streets, now the squares and lanes between the city’s enchanted shops are lush with spring blooms – but something dark is stirring just below the surface, and uncommon traders are uneasy. Ivy and Seb have stumbled into a plot that could condemn every uncommoner to a disastrous fate . . . With the help of Valian, their extraordinary friend – and some exceptional uncommon objects – can Ivy and Seb put a stop to the sinister Dirge’s plans?