'A prequel short story about the De Lainey family from The Boy Who Steals Houses. It's set a week before Moxie meets Sam. Available for free on author's blog.
'Last year Christmas didn’t happen because their mother had just died...
'It's a hot miserable December and the De Lainey family are actively ignoring the festive season, but when Moxie finds her little sister's screwed up letter to Santa in the bin, she decides to bully Christmas to life. Includes various sibling dramas, a too-small tent, and confusion between Santa and a potato.'
Source: Publisher's blurb.