Teenage orphan Lucy Daz is carving out a busker's life on Damyadi Space Station, saving what credits she can for passage to one of Nearspace's new colony worlds. But when a hawker turns up on the station selling a "miracle cure" for space sickness, Lucy is faced with a tough decision: try to ignore to the problem and the pricking of her conscience, or take a big risk to protect the unsuspecting colonists who come to her shows...