num_pages: 192
description: A jangling telephone interrupts a long-awaited country holiday. Slim Callaghan and his sidekick Windy are summoned from their fun and games to investigate murder and mystery. The BBC is producing the late Peter Cheyney's first two 1940s Callaghan mysteries, Urgent Hangman and Dangerous Curves.
language: English
title: They Never Say When
titlecomplete: They Never Say When
characters: Slim Callaghan
ratings_count: 18
series: Slim Callaghan
publisher: Collier Books