Will Charlotte and Mia finally get their princess wands? Best friends Shelley and Kat are desperate to put on the perfect Jingle Bells Ball. Their whole school is counting on them and they wish everything could go well. And if Charlotte and Mia grant their wishes, they'll finally become fully-fledged Secret Princesses! But mean Princess Poison hates Christmas, hates fun and most of all hates happiness. Can the girls defeat her one last time? Join Charlotte and Mia in this brilliant adventure full of princess sparkle and Christmas excitement!