Loosely based on a dream last night with a lot more details to flesh out things.

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Draco Malfoy is charged with kidnapping Harry Potter using a bit of scrap paper as a portkey to get him before he enters Hogwarts.

Draco, per his mission, starts searching the platform for Harry Potter.

When that fails, he searches the train, finally finding him, but he's with a Weasley.

Finally, on the path from the train, Draco is able to get behind Harry and slaps him on the back with the paper, with the portkey taking him along too to get him away from possible retribution.

But something happens no one expected.

Hogwarts was designed to be impervious to portkeys. Both inbound and outbound, to or from Hogwarts. Stops them cold.

But this portkey wasn't aimed at Hogwarts and was triggered just off the ward boundry, but close enough that the portkey hits the ward field surrounding Hogwarts, and with the portkey not being to or from Hogwarts, it interacts poorly with Hogwarts' rather powerful wards and pings off, getting a wild unintended boost that deposits them far far away from their intended destination.

Malfoy, expecting to be dropped off at home, suddenly finding himself in a hot and scary jungle, panics and runs off and ends up eaten. (assuming it was roughly 7-8 PM when they arrive at Hogwarts, and Isla Sorna's canon location being 200 miles west of Costa Rica, firmly putting it in UTC -6, it's 2 PM on the isles of death)

Harry, being a bit more level headed, is cautious and starts to try and find out where he is.

Cue Harry running into dinosaurs and finding out they talk, just like that snake in the reptile house. Unlike the snake however, the dinosaurs are unimpressed with this ability. So the prey can talk, so can everything else!

Thus Harry has to spend a lot of time running for his life, negotiating with dinosaurs, attempting to find out what they want, and potentially gain the power Voldemort knows not, a loose collection of dangerous creatures that won't just bend over for him simply because he's a Speaker.

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Isla Sorna has already been abandoned. John Hammond brought in Dr. Grant and Dr. Sadler to vet the park to prevent the lawyers from shutting it down after an incident between a worker and a raptor, but a disgruntled employee with a gambling problem who also happens to be head programmer, Dennis Nedry, is unimpressed with Hammond's 'spare no expense' attitude yet won't help him out, and thus takes advantage of the skeleton crew left on the island after the incident, along with most having already evacuated per procedure due to an encroaching hurricane, and several systems still being under construction and thus incomplete, by attempting to commit corporate espionage and escape the island after shutting down several security checkpoints between him and the boats, which also happens to be tied into the electric fences for the various dinosaur pens, except for the raptor paddock, which is small and isolated and not attached to any other electrical fences.

Thus cues the Jurassic Park incident. Hammond and Co escape, but several people die, including the lawyer sent to inspect the safety of the park in the first place.

The Costa Rican government in combination with the US government, are all set to firebomb the island to prevent any animals to escape via swimming, but are eventually assured that's impossible and thus unnecessary, due to the lisene contingency.

Unfortunately the Lisene contingency was counteracted by a bunch of bleeding heart types before they escaped the island on a boat, so these dinosaurs aren't nearly as isolated as anyone thinks, especially with them having been spliced with amphibian DNA during their creation.

Can Harry successfully negotiate with the dinosaurs before they escape and spread? If he can't, the island may get firebombed anyway.

Can a young, untrained 11 year old wizard gain enough control of his wild uninstructed magic to be able to get the effects he wants from his wand despite knowing no incantations or specific wand movements?

Will magic impress the dinosaurs where speaking did not?

Be a bit of an adventure to find out!

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I've read way too many stories where Harry ends up on the island and things just go swimmingly from there as the raptors adopt him cause 'omg he can speak!'. Meanwhile a while back I read this story about Eric Kirby in which it explores his efforts to deal with the dinosaurs while trapped on Isla Muerta, and how he slowly impresses the raptors intending to eat him, not that it stops them from intending to eat him, but they can respect prey that keeps escaping over and over again in rather ingenius methods till the point it practically becomes a game to them, to see what he'll do next.

Later on this Eric Kirby, to escape notoriety from the public, eventually changes his name to something unassuming, Owen Grady, joins the military, gets an honorable discharge, and ends up working with wild dangerous animals out in Africa, before he ends up right back where he started, hired on by Jurassic World for his experience with big dangerous creatures in order to train raptors.

That isn't for this story prompt, but I liked the idea of actually putting in effort to impress the raptors.

Toss in my dream last night of a Harry Potter on an Isla Sorna that reminded me more of Ark Survival Evolved, who could speak to the dinosaurs, but didn't give a crap, but for Harry's wild magic impressing upon them to obey him, but it only affected so many dinosaurs at a time, and this isle is much more dangerous than in canon, with multiple rexes, spinos, and raptors, along with many others, and Harry's involved in canon events loosely based on the movie, but with everyone getting scattered and/or killed trying to survive, with Harry and Lex isolated until it's Harry's skill that brings them together and eventually allows them to escape safely, but by the end, his power to control the dinos starts to wane, and it gets a lot more dangerous while waiting for the helicopters to arrive to evacuate them, and security's not having a good time holding the dinos back with their guns and tear gas, and most die before the helicopters land and they escape.

There was more, but I don't think involving jet skis and roller coaster style water channels built on the water, among other confusing nonsense, is necessary. So I changed and added details to make some sense of the mess.

Mix it all together, and you get the prompt I came up with.