Today I recommend: Frogkisser! by Garth Nix.
Princess Anya has a big problem: Duke Rikard, her step-stepfather is an evil wizard who wants to rule the kingdom and has a habit of changing people into frogs, and her older sister Morven, the heir, is a wimp–so with the help of the librarian Gotfried (who turns into an owl when he is upset), and the Royal Dogs, she must find away to defeat Rikard, save her sister, and maybe even turn Prince Denholm back into a human being.
This fantasy book has everything you could want: humor in the shape of hilarious talking dogs, the classic fantasy elements in the magic lip balm, newts, otters, a Good Wizard, and a strong main character! It also subverts a lot of fantasy tropes, there is no romance plot for our brave main character, Princess Anya. The book also has some interesting discussions about privilege and how laws should apply equally to everyone. This book is pretty hefty at 372 pages but if you love fantasy this is a book for you! You can find it in the Juvenile Fiction section at J NIX.