Drumbeats!

From Author Wars - https://authorwars.com/publications/drumbeats-914221.html

Overview:

Title: Drumbeats!
Author: David Severn
Year: 1957
Publisher: George Allen & Unwin
Pages: 155
Binding: unknown
Type: Novel
Title Reference: Drumbeats!
Notes:
"Windsor Selections", edited by {{a|W. G. Bebbington}}, were school editions. The text of this one may be unedited or nearly so. The original was a 1953 British juvenile novel; David Severn was the son of publisher Stanley Unwin.