Rivi

As you land on the arid island, you see a floating figure in the distance. The colors on his body— mostly red, green and yellow, with a few dashes of blue— swirl as he draws nearer. You get a good glimpse of his face, and the rest of body, which is just an upper body ringed with short, stubby tentacle-like bulbs around his head, upper arms, hands, and waist.

"Who... or what... are you?" You ask the creature.

<I am a Riph-tal. We're the ones that run Rivi. The Riph-tal are magic-users, you see... we're much stronger than most of the others, since they can't use magic at all. We help them as doctors and police. I, however, am a caretaker of the Rivi Zoo.> He smiles. <My name is Kitan.>

"Cool!" You say, grinning as you reach out to feel his skin, but are a little shocked when it you realize it is a smooth gel, held in place with a clear, rubbery skin. Kitan backs away in disgust, with yellow gel overtaking his body. "Oh, sorry... I thought maybe you were a type of pet."

<WHAT?> Kitan yelps. <That's absolutely preposterous! What kind of... oh.> He replies disdainfully. <No, we are not. However... there are some native creatures that live in Rivi, alongside the pets that are invited to these lands. Find a nest of Rooks... you find out what one is when you find it... You can see if they would like to be 'pets'. I do not know.> He waves his hand around, pointing to four distinct gates carved out of stone. One stands away from the others. <There are four portals on this island. Three of them lead to Retek, which is an unplottable, physically invisible island very near Rivi— surrounds the shoreline near the portals, in fact. It can only be reached through those portals. The fourth portal is not a part of Rivi, but it is very important to the police.>

"Which one do I go to?"