Little by little, the problem princes have been facing their flaws and learning more about themselves as Professor Heine grooms them for the throne. But when Count Rosenberg makes another appearance, they realize there's one thing they still know nothing about: the royal tutor himself...
Then, from right to left, the books
should go from tallest to shortest.
،وبعدها، من اليمين إلى اليسار
.ومن الأطول إلى الأقصر
Dann von rechts nach links,
vom größten bis zum kleinsten Buch.
Y de derecha a izquierda,
los más altos van primero.
Y de derecha a izquierda,
los más altos van primero.
Poi vanno in ordine d'altezza,
Da direita à esquerda,
dos mais altos aos menores!
И ещё, книги должны идти 
от большой к маленькой справа налево.