I spy

By Graham Marks

Subjects: Mystery and detective stories, Juvenile fiction

Description: Trey can't wait to go on a grand tour of Europe with his father - until he realises it involves dusty museums and boring business meetings. Then, out of the blue, everything changes and they're boarding the Orient Express, destination: Constantinople. And he's sure they're being followed by a sinister man with a pencil mustache. Who is this shadowy stranger?