Arendelle Legend Trilogy 

Wave the Swallow

 

Wave is an anthropomorphic 18-year-old swallow and is the technical and mechanical expert of the current generation of Babylon Rogues. She is the daughter of the tech expert of the previous generation of Babylon Rogues, which she takes after, and takes care of her groups' customized Extreme Gears.

Because of her knowledge on Extreme Gear, Wave is brimming with self-confidence and can be a bit of a trash-talker and highly critical of others' work with Extreme Gear. She hates thick-headed or stupid people and she tends to give advice only she can understand. Regardless, Wave is level-headed and serves as the voice of reason in the Babylon Rogues, though she is often mistreated by the other members.

When she and the other Babylon Rogues went into Arendelle's world three years and six months after they had met, the earthquake struck, and they immediately went to the Underworld to serve the Master in an attempt to try and destroy Sonic. Wave then made it her goal to try and destroy Tails to try and avoid any competition from the two-tailed fox cub. The Mystic Rangers were sent through time, and during the time they were in Crisis City, the Babylon Rogues threated Arendelle that it would be destroyed if the citizens and the royal family did not surrender nor make any attempts to resist. Then they returned to Transformia in the North Mountain, where Eggman had set up shop to develop a lot of robotic soldiers for the Master.

Two hours later, the Mystic Rangers arrived with Silver, the Solaris Knight with them. They then tried to place them under arrest for high treason to the Master, but when Sonic raced him to the control room with the hedgehog on foot, and the hawk on the Extreme Gear board, they ran into the old Egghead and he explained everything to the best of his ability (NOT!). Before he did so, though, he dismissed the Babylon and they left. Nobody knows what became of them. It's hard to tell if they wanted to keep fighting against Sonic and the royal family of Arendelle for the rest of their lives or if they got a bit homesick and decided to head back into the other world.