The Island of Destiny

Ziko speeds away through the water, with you clutching his back and somewhat enjoying the wild ride. You notice now that Ziko has swum into an underwater cavern and the water becomes progressively darker and darker. Then, Ziko starts to swim up and a few moments later, you are breathing oxygen again.

Ziko rests above water while you step onto the rocky ground and look around the cavern. A couple torches are lit but besides that, there's not a lot to look at. You are surrounded by immense rock walls and a granite ceiling.

Ziko then speaks "Wait here for me okay? I just need to go back and check to make sure we weren't followed."

You nod in agreement and Ziko quickly swims off. You are now left in the cavern alone and with nothing to do, you sit down on the rock and relax for a few minutes. You still can't get over what a crazy time it's been so far.

You then start to notice after a while that Ziko should've been back by now and as the minutes turn into hours, you feel that something is definitely out of place. Now that you think about it, you don't really have much good reason to trust a talking shark in the first place do you?

You then stand up and start to pace around the cavern, looking for anything that might be of interest. Surprisingly after a few moments, you find something. Dug into the rock wall on the far side, are three doors carved into the rock. Even more amazing, you notice that each door is made out of a different material, emerald, ruby, and sapphire respectively.

You see that each door also has a symbol on it and a word beneath the symbol. The emerald door has the word "Gemini", the ruby door has the word "Libra", and the sapphire door says "Aquarius". You see a sentence scrawled out above the doors on the cavern wall that says "Pick your sign and enter".

It's curious because you can definitely pick out your sign from these three doors. The question is, should you go through a door or stay longer and wait for Ziko like you were instructed?