Night Outside

From Author Wars - https://authorwars.com/publications/night-outside-233429.html

Overview:

Title: Night Outside
Author: Patricia Wrightson
Year: 1979
ISBN-10: 0727011510
Publisher: Australian Magpie / Rigby
Pages: 60
Binding: Paperback
Type: Chapter Book
Title Reference: Night Outside
Notes: Copy used for this data was "Reprinted 1984".

The cover art doesn't seem to be attributed; however, it is in a similar style to the interior illustrations.