As far as getting the PCs to the isle, perhaps a patron of the arts in the near isles hears of a particularly talented actor who's in the production. The patron hires the PCs to go to the island, see the play, and if the actor is any good, deliver the patron's offer of employment to the actor, and escort them safely back to the patron.
As for the plot of the play... The title sounds melodramatic to me. "As Hadeys is my witness, I will never go hungry again!" I don't know, pick a Shakespeare play, give it a D&D twist, and let things get ridiculous. Example: Romeo and Juliet, but the families are eladrin and dwarves. Things proceed as in the original, but instead of dueling, the eladrin hero summons a fire elemental, which escapes his control and takes to burning the city down. The warring
families races fight, each trying to destroy the other and contain the elemental at the same time, but in the big fight scene, a Dwarven warlock, the chick's brother, hits the eladrin with a wand that turns him to stone temporarily. Believing him dead, the dwarven ingenue quaffs two or three potions of flesh to stone. (Hey, she's a big girl. High fortitude and all that.) He makes his saving throw, wakes up to discover his love a statue, goes mad with grief, and starts putting together a ritual to harness the power of lightning to reanimate his lover's stony flesh. He has to kill most of his and her families to do it, until in desperation the two sides finally put aside their differences and manage to exile them both to a remote island drifting away from the inner seas. He finally manages to reanimate her, but instead of recognizing him, she turns away from him and walks into the sea. He comes to his senses, has one last soliloquy, and impales himself on her ancestral dagger. Curtain.
Okay, maybe I should drink less coffee at work.