The job: Steal the Sceptre of Wonders from the Royal Treasury, deep beneath the Pink Palace, in the city of Anaxapajura, capital of the remote tropical island nation of Hcunanzamon. An impossible task, say most.
They don't know about the secret door inside though. On the other side of this door? The fabled place known as Down Below, a vast labyrinth of wonder and mystery, according to legend one of the last remnants of an ancient but advanced society who vanished abruptly thousands of years ago.
But there's a map, showing a safe path through the mysterious machinery, deadly traps and ancient guardians, which will enable you to escape beneath the city to the exit and be away on your waiting ship before the alarm is raised.
Of course, those rumours Down Below has been known to completely change its layout for no apparent reason whatsoever aren't true...