B.W. looks just like D.W, but she has many different outfits, including a pink dress and crown, a cowboy costume, and her secret agent outfit that consists of an orange shirt with blue suspenders, green pants, and a green helmet with her name on the front over a red line.
B.W. is described by D.W. to be "a great kid, who was a princess, a genius and a cool person, but she was too polite to brag." The story with her in it also shows her to be fearless when she does a cartwheel on a balance beam and flies her no-wheeler over a lake with over 7000 octopi in it.
In D.W.'s story, B.W. is described as being a great kid with a perfect life, except for one thing: her big brother, who was also a "big brother mega-transformalizer", a robot with the ability of shapeshifting. He and his evil partner Bustrantor's latest crime was stealing B.W.'s snowball, so B.W. has her friend Walter the deer locate their hideout in the treehouse and attempts to take them by surprise, but they notice her as she's climbing up to the treehouse, so B.W. does a cartwheel on a balance beam below and then flies her no-wheeler to fly over a lake filled with octopuses to evade them while the two robots are caught and tossed around by the octopi's tentacles.
That night, B.W. goes to a restaurant with her parents, where all the other customers, including her parents, have turned into zombie-like "Spinach Heads" due to having eaten spinach, which B.W. was smart enough not to do. B.W. goes to her Aunt Lucy's wedding to retrieve the "Power Ring of Power," the only thing that can cure the Spinach Heads. After retrieving it from the organ before it fell to the center of the Earth, B.W. returns to the restaurant and tries to use the ring, but discovers that it cannot be used without her magic blankie, so she calls her secret agent, Nadine, who traces its location to the All-In-One-Mart, where B.W. and Nadine briefly get lost, but then discover B.W.'s snowball in a freezer, and an arrow appears on it, which B.W. assumes shows them the way out. B.W. and Nadine make it out of the mart, and the Crazy Bus is waiting for them outside, with B.W.'s magic blankie inside it. However, soon after B.W. boards the bus, it transforms and captures B.W., showing itself to actually be B.W.'s big brother in disguise. B.W.'s eagle, Spanky (who gets his name from D.W.'s real dead pet parakeet), comes to her rescue by pressing a button on his back that transforms him into a birdcage, trapping him and Bustrantor, but unfortunately sacrifices his life in the process, and a funeral is held for him at the White House courtesy of B.W.'s friend the President, ending the story.
- B.W. on the Arthur Wiki