We can see here that "The Interlopers" by Saki is a story with themes of rivalry, conflict, and the consequences of feuds. To adapt it into a poem of at least 10 lines, one can explore these themes in a poetic form.
Here's an adaptation inspired by the story:
In woods where shadows dance and pine trees sigh,
Two rivals clash beneath the moon's pale light,
A feud entrenched, its roots run deep, so sly,
Their hearts consumed by bitter, endless spite.
Their eyes ablaze with vengeance and disdain,
In silhouettes against the starry sky,
Two souls entwined in enmity's dark chain,
Bound by a legacy they can't defy.
Yet fate's cruel jest, amidst the tangled thorns,
Conspires to weave a different kind of tale.
This adaptation uses the rivalry and conflict as central themes, exploring the futility of their feud and the unforeseen twist of fate.