The Children in the Painting

From Author Wars - https://authorwars.com/publications/the-children-in-the-painting-575348.html

Overview:

Title: The Children in the Painting
Author: Modwena Sedgwick
Year: 1969
ISBN-10: 0575003464
Publisher: Gollancz
Price: 21/-
Pages: 128
Binding: Hardcover
Type: Novel
Title Reference: The Children in the Painting
Notes: 1st ed. (the only found at WorldCat 2016-06-17) Price from brief review by Philippa Pearce The Guardian 1969-12-11 p7 "Other times, other identities"

Publ date and cover image from Amazon UK 2016-06-17 (this ISBN; only format/edition; as 160 pp, Littlehampton Book Services Ltd)