<Helloooo! I'm fiiiiine! How are youuuu???>
Today's riddle from the witch is (hopefully) a bit of a tougher one.
A, B and C are all stuck on a large island in the middle of a thunderstorm.
Having heard nothing from the island for a couple of days after the storm clears and with the forecast predicting another storm soon, the police sends two officers, D and E for a wellness check.
Upon arrival, D and E find A's corpse lying in a messy pool of blood on the island's dock. They examine the body and find a hastily written note: "B must be stopped".
The two officers follow a trail of blood from the dock and enter the manor (the only building of note on the island) to find it deserted. The kitchen has been mostly emptied, no bedrooms show any sign of use. The blood trail from the dock ends in the parlor, whose walls are lined with blood.
The island's only radio has been smashed against a wall.
Once they're sure the manor is clear, they return to the docks to use their ship's radio to report.
To their surprise, they find B's corpse right where A's corpse used to be, in pretty much the same state, with A's corpse having vanished. Worse yet, it seems that in their hurry to examine the body, they did not moor their boat properly upon arrival, and find themselves without a way to return to or contact the mainland.
A few hours later, a local fisherman contacts the police: as he was waiting for the storm to pass, he saw a boat wash up on the beach. When he went to check it out, he only found what appears to be an ingot of pure gold inside. Officers seize it and return to the elderly fisherman's home to write down his testimony, when, 30-ish minutes later, they suddenly hear an explosion from the beach. They rush outside, only to find A's body in the small boat, soaked in burning gasoline. Once the fire subsides, they find another note inside A's mouth: "the isle of gold claims two new souls."
What happened to A, B and C? When the storm clears, will D and E still be alive?