Determining the Tone of Oliver's Adventure

The following passage is an excerpt from a children's story about a brave young boy named Oliver:

Oliver had always dreamed of becoming a hero. Every day after school, he would put on a makeshift cape and set off on exciting adventures in his backyard. With a stick in his hand that he imagined was a sword, he would battle imaginary dragons and save the day. His laughter echoed through the neighborhood, inspiring other children to join him in his quests. They built forts, climbed trees, and shared tales of bravery.

But one day, while exploring the woods behind his house, Oliver discovered a hidden path. Driven by curiosity and the allure of adventure, he decided to venture down the path, not knowing where it would lead him. The trees were taller and the air was filled with a sense of magic. As he walked deeper, he felt both excitement and a hint of fear, but he pressed onward, determined to uncover the secrets that lay ahead.