Write a possible story for "Monster Hunter Stories 3: Petals of Pandemonium", which takes place 1000 years after “Monster Hunter Stories 2: Wings of Ruin”.

(Player character: Slash)

(Chapter 1 battle buddy: Silence)

(Battle buddy monstie: Screech [Somnacanth])

(Chapter 1 location: Hakolo Island)

(First monstie obtained: Dreadking Ratha)

(Chapter 1 boss: Erroneous Astalos)

(Erroneous monsters are monsters corrupted by the dander of the Petals of Pandemonium - an elder dragon who's behavior is a mystery)

(Slash and Silence are twins - as both have lived in the now high-tech Mahana Village)

(Silence is much more calculative and patient - always waiting for the perfect chance to strike. Her brother Slash, on the other hand, is aggressive and relentless - he won't stop until his target is killed)

(Slash and Silence are the descendants of the protagonist of “Monster Hunter Stories 2: Wings of Ruin”, while Dreadking Ratha is a descendant of Razewing Ratha)

(Dreadking Ratha isn't like his descendant - he's one of the more calm Rathalos out there, and has had experiences with humans before. More importantly, he would already be walking around when Slash and Silence step out of their home)