Grace has proved to the kingdom of Wondermere that when it comes to courage, determination, playing TROLL-O on unicorn-back and being a BRAVE KNIGHT, she's just as good as any boy!

But now Wondermere is expecting a VERY IMPORTANT visitor: the MERMAID QUEEN of the Outer Ocean. That means frilly dresses and best behaviour – and absolutely NO RULE BREAKING.

But when a purple DRAGON EGG falls into the moat of Wondermere castle, Grace and her sister Princess Portia find themselves babysitting a BIG SECRET.

One teeny tiny little dragon called Dennis couldn't possibly disturb the royal visit ... could he?

Have you read all of the books in the series?
DO NOT DISTURB THE DRAGONS
DO NOT MESS WITH THE MERMAIDS
DO NOT PANIC THE PIXIES