The Tiara Club: Princess Olivia and the Velvet Cloak by Vivian French
The Princess Academy has visitors - princes! Princess Olivia dreams of a prince bowing low in admiration before her. But horrible Princess Diamonde is chosen instead...
You've met the Rose Room princesses in books 1-12 of The Tiara Club - now meet their friends in Poppy Room. Six more books of princess magic!