When Aang decides on mini-vacations, Sokka is not a big fan of the idea. She continues to not be a big fan during Aang's little performance. Katara's decision to go to Misty Palms Oasis isn't something Sokka really wants to do, but she goes along with slightly less complaining because Katara is her sister and she loves her.
That doesn't mean that she's not still worried about what to do about their attack on the Fire Nation, but she wants to try and not think about it for at least part of Katara's mini-vacation.
Misty Palm's Oasis looks nothing like what Sokka thought it would. The area is covered in sand and very hot. She's not a big fan of the sand benders that surround the area. One of the sand bender's whistles at Sokka, and the way he looks at her makes her feel a bit uncomfortable. She makes sure to keep an extra eye out for Katara and Toph's sake. That is until she sees the mango drink.
The drink leads her to meeting Zei, which helps her figure out where she wants her mini-vacation to be.
Wan Shi Tong's Library is incredibly hard to find. But once they get inside it, Sokka's more than pleased with her choice. Wan Shi Tong is a bit of a creepy creature, and he doesn't appreciate the knot she shows him, but he does let them look around the place.
While Zei seems to be collecting things to read in depth, Sokka just finds what she wants and pockets it. There's tons of scrolls in the place, Sokka's sure the spirit won't miss a few. When she learns about the darkest day in Fire Nation history, Sokka immediately needs to know more. She finds the room that should have the information about the Fire Nation, but the room is full of ashes.
Before Sokka can give up, one of the fox creatures helps her out. The planetarium that shows the sky moving proves to be very useful. The group learns about the solar eclipse. of course, she foolishly says too much and the spirit overhears. Escaping from the spirit proves to be difficult, but Sokka refuses to leave before she learns when the next eclipse will be. Once they learn the date, Sokka and Aang rush off to make sure Katara and Momo got away safely.
Sokka slams a book into the spirit's head and knocks him out. She realizes that a lot of her attacks on people in power seem to be hitting them on the head. But it works, so Sokka's not gonna worry about it. Zei refuses to leave the library, but that's not the worse thing to happen.
When the group makes it out of the library, they learn that Appa is gone.