Ella Elephant, Coco Cat and Oliver Owl join a forest ranger to search for the oldest tree along Oakwood Reserve’s Discovery Trail. By measuring trunks, studying bark, following maps and learning how to distinguish useful evidence from unrelated clues, they eventually find a magnificent oak more than two hundred years old. A fascinating nature adventure that teaches observation, evidence-based thinking, safe exploration, tree growth, and how ancient trees support an interconnected forest community.