The Hidden City of the Great Valley

Once upon a time, in the heart of the Berkswell Kingdom, hidden deep within the vast green mountains, was the legendary city- ‘Verdure Vale’. The city was beyond the reach of common folks; only the dreamers who held courage, tenacity, and a pure heart could find the entrance - a venture few dared to undertake.
The kingdom was under the gracious rule of King Bernard, a wise, just, and kind-hearted ruler, revered by his people. However, Bernard was aging, and with no heir ready to take his place, the kingdom found itself on the precipice of uncertainty. This was when the counsel made a bold proposal: the person who could find and bring a treasure from the Verdure Vale would be given the kingdom's reins.
Word of the grand quest spread throughout the kingdom, and soon, beyond its borders. Many ambitious men and women bravely left their homes and ventured to uncover the enigmatic city. Despite their valiance, one by one, they returned empty-handed, for the city had a way of distinguishing amongst its seekers.
Among the hopefuls was a humble young shepherd from a distant village, Gabriel. Unlike most of the fortune seekers, Gabriel wasn't driven by greed but the desires to save his ailing mother and secure the peaceful future of his homeland.
His journey was arduous and fraught with dangers. He braved raging storms, escaped predatory beasts, and walked on ceaselessly till his legs could carry him no farther. One day, as he collapsed in exhaustion under a massive, ancient tree, a melodious voice echoed around him, 'Why do you seek the city of verdure, traveller?'
Panting heavily, yet with determined eyes, Gabriel answered, 'To save my kin and protect my people.' A serene light engulfed him, and the massive tree opened to reveal a staircase leading into the earth. Gabriel's heart pounded with sheer exhilaration as he treaded the stairs.
Inside, the city was more than Gabriel could ever imagine. Cascading waterfalls, buildings made of glistening emerald, streets lined with flowers illuminating in luminescent hues. He was escorted to a grand palace at the heart of the city, by beings of sheer light, where he met the spirit of the city, 'Astraia'.
Astraia, with her hair of cosmic black and eyes of astronomical azure, shimmered in ethereal beauty. She looked at Gabriel with a knowing gaze, 'You are indeed different, young Gabriel. You hold no malice nor greed; your desires are pure. But remember, true strength lies not in ruling, but in serving. Will you devote your all to protect your people?'
'I will', stated Gabriel with unwavering resolution. Astraia nodded in approval and gifted him a crystal - the Heart of Verdure. She explained that it held the power to heal all ailments, rejuvenate the land, and bring prosperity, but it required a worthy holder to control its powers.
Triumphantly, Gabriel returned to Berkswell, used the Heart of Verdure to heal his ailing mother, rejuvenate their starving fields, and uplift the impoverished. His actions mirrored King Bernard’s virtues, and thus, he was crowned the rightful heir to the throne.
Over the years, under King Gabriel’s rule, the kingdom flourished, telling the tale of the humble shepherd who brought prosperity to his people. Gabriel became a symbol of resilience, service, and humility. His brave voyage to the Verdure Vale was sung in ballads, passed onto generations, fueling the dreams of many young hearts to strive for their people's welfare over individual cravings.
And, the city of Verdure Vale, having found a worthy protector, continued to exist in tranquil serenity, waiting for the next deserving soul to seek its presence.