Deru

 is Colm and Emma's faithful friend. She is a type of nature spirit called a dryad, and despite this, she is normal size''. ''She is the soul of the world tree Drasilmare, and Twig, her dryad steed, is the heart. She has brown skin and a long black ponytail. If she stood still enough you would mistake her for a lotus flower. She goes everywhere with Emma and Colm when Emma's Valkyrie duties call her back into action.

On Bella Sara Adventures, she's in Canter Downs.