Rumour had it Anton's deceased Grandfather owned rare and valuable Bulgarian stamps. By accident Anton discovers a booklet on rare stamps with a code - hidden in his Grandfathers silver walking stick. A set of rare Bulgarian stamps has been circled in red ink. Anton recruits Jason, Julie and Luke to help him solve the mystery. Did his Grandfather circle the stamps? Did he own them? Will the code reveal the whereabouts of the stamps? Plenty of work for the Kid Detectives. It does not take long for the team to realise they have competition in the search for the stamps. An unknown person or persons is determined to get the stamps before the kids do - and will resort to shady tactics to win. With the rare stamps valued at $30,000, motivation is high on both sides to lay hands on the stamps. The money rightly belongs to Anton and his Dad. The crooks are of the opinion the stamps and the money are theirs. ....read on