There are six different colours in the sisters' chalk set.

"And then," the nephew excitedly tells the nieces "the princess drew her sword and stepped up to fight the wicked dragon". With two more strokes of the chalk, a fiercesome dragon comes alive on Anna and Clara's terrace. The nieces stare in awe and beg the nephew to continue the colourful tale he is telling.

"Children truly have the most fantastical ideas," Anna says with a smile as she and Clara are watching the chalk adventure unfold from the garden table.