"As long as I can use my talent, I'll be fine."
Rani is a Water fairy, the most passionate of them all. She loves rainy days and splashing in puddles. She even knows how to whistle mermaid songs. Her favorite dreams are swimming dreams. Rani can do amazing, magical things with water: bounce it like a ball, mold it into the shape of a fish, or scoop it up in her fingers without losing a drop. She can also help her fellow fairies with water-related things, such as getting water to boil faster.
Rani is the only fairy in Pixie Hollow who can swim. This is because she has no wings. She sacrificed them on the quest to save Mother Dove's egg. She's not entirely unhappy about losing her wings, since she had always longed to swim, though she misses being able to fly on her own. Now Rani flies with the help of Brother Dove. Whenever she needs him, Rani whistles, and Brother flies to her side and carries her wherever she needs to go.
Another thing that makes Rani unique is that she has a bat living in her head. Soop, one of the Never Mermaids, accidently turned her into a bat in Fairy Haven and the Quest for the Wand. Beck, Prilla, and the Golden Hawk turned her back into a fairy, but Rani now has Rani-bat sharing her body. However, it seems that Rani-bat's presence eventually faded since no other mention of it has been made.
In the books
In Fairy Dust and the Quest for the Egg, she is chosen to be the head of the questers after Mother Dove's egg broke. She, Prilla, and Vidia helped get the three items needed to trade with Kyto. Captain Hook's double cigar holder, a golden feather from the golden hawk, and to get a mermaid's comb Rani had Prilla cut off her wings to go and retrieve it from Soop. They then took all the items to Kyto and he saved it but also contaminated it, so Prilla got clumsy children to save it. Brother Dove is also introduced to her as her new wings.
She also appears in The Trouble with Tink, teaching Prilla how to make fountains in the water. They then went to eat dinner, Prilla sat with her and made a successful fountain in her soup.
She and Tink were preparing for Queen Clarion's arrival day bash, in Vidia and the Fairy Crown. Vidia came up them and said that she would love to steal the queen's crown. Later when the crown went missing Rani and Tinker Bell told everyone what she had said.
Rani also went on the quest for the wand with Tink and Queen Clarion, in Fairy Haven and the Quest for the Wand. Her first wish was to make Soop like her, then to have wings that can work underwater, too. She then grows scaly, fish-like wings, and when she gave Soop the wand, Soop began to sing causing Rani to turn into a bat. Later, Beck and the golden hawk helped her get control of her body again. When all the wishes are reversed Rani loses her wings again, and her friendship with Soop. She also has a bat's logical, politeness-obsessed mind trapped within her emotional, outburst-heavy body.
In Rani in the Mermaid Lagoon, she is not allowed to work on the fountain for the Fairy Dance, because the other water fairies are afraid that Brother Dove will accidentally ruin it. When she gets there, she accidentally fell off of Brother Dove's back ruining everything. She is so upset she traveled all the way to the Mermaid Lagoon where she met Oola and Mara, then their friend Voona-- she decides to once again make friends with mermaids. However, the mermaids abandoned her several times for things that seemed more interesting, such as when they stranded her in Starfish Gap for Peter Pan. Later, she helped a sea horse who gave her a magical pearl, when she saw his family she missed her friends and started back towards Pixie Hollow. Everyone was happy to see her, she even found a way to light up the fountain with the magical pearls.
She helped find a way to dose Kyto with water in Fairies and the Quest for Never Land, with water birds. Her and the other water-talents went on the quest, they helped a lot with keeping Kyto at bay. Rani cried about the other fairies that had died because of Kyto.
Rani was watching the others playing acorn ball in Rosetta's Daring Day. Then she went with Fawn and Rosetta to put out a fire. Queen Clarion held a party in Fawn's, Rani's and Brother Dove's honor, where Rani was awarded with a medal.
In Four Clues for Rani, a drought had been going on for two weeks putting all the fairies on edge. Rani was sick of being pitied by others but didn't know how to stop it. She was excited when Queen Clarion announced a Fairy Treasure Hunt, so she had gone to the library to study but overslept. Everyone already had a partner except Ronan who Rani didn't want to be partners with but had no choice. She had made a bet with Vidia that if she won Vidia would be her servant and vice versa. Rani has to ride on Cousin Dove instead of Brother Dove since he broke his wing. Rani tries to rush through clues but Ronan always stops her, which proves to be good when they get to the last clue and win the treasure hunt and the bet.
In Rani and the Tree Treasures, she is tricked by a sly water sprite, Dab.The cloud keeper tricked Rani into watching over her rain clouds and wouldn't take them back. Poor Rani became VERY unpopular when it started to rain and wouldn't stop! Luckily, Dab came back and took the clouds away and (to Rani's relief) didn't make her do it all over again.
- Rani is the only fairy in Pixie Hollow who doesn't have wings and can't fly anymore, but the only who can swim without drowning herself.