Who's that calling for help? A sunburned mermaid? A sneezy lion? A unicorn in distress? Quick! Send for the Flying Doctors! They'll swoop to the rescue on Zog, their trusty dragon-ambulance. But when the king himself falls ill, can even the Flying Doctors save him? Dramatic, funny, and superbly illustrated, this is a triumphantly original sequel to A Gold Star for Zog, by the the bestselling creators of Stick Man and Room on the Broom.