The Whispers of Patroclus

Achilles.
Born of the union between Peleus, the illustrious king, and Thetis, a nymph of the sea, this lineage was etched in the stars, ordained by the whims of divine decree. Yet, despite the prestige that adorned his birth, his upbringing was marked by a sense of yearning, a longing for purpose that eluded him in the opulent halls of his father's palace.
Trained in the arts of combat and nurtured in the ways of nobility, he will tread a path destined for glory, name whispered in hushed reverence by those who recognized the spark of greatness within him. But amidst all the fame, there lingered a void, a void that strangely enough could only be filled by a clumsy, exiled prince.

A retelling of Madeline Miller's The song of Achilles but from Achilles' point of view and how his life was before Patroclus entered his life and once he left.
Cover isn't mine, belongs to green446004 on Deviant Art.