ISBN-13: 9780552144322 / Angielski / Miękka / 2000 / 182 str.
This text has been adapted for the stage by Stephen Briggs. The Ankh-Morpork City Night Watch find their services are once more needed to tackle a threat to their city. A threat at least as deadly as a 60-foot dragon, but mechanical and heartless - it kills without compunction.