Question: In what series did both Xavin and Karolina Dean appear?

Related documents: [0]  [DOC] Karolina Dean ( ), also briefly known as Lucy in the Sky, or L.S.D., is a fictional character, a superheroine appearing in American comic books published by Marvel Comics. The character first appeared in the series "Runaways". Like every member of the original Runaways, she is the daughter of evil super-powered criminals; while searching through her parents' home, Karolina inadvertently discovers that her parents were Majesdanian invaders. Majesdanians are an alien race that absorbs solar energy and reradiates it in the form of the colors of the rainbow. She is often called "Kar" or "K" for short, and is known for her free spirit and kind nature. She is a vegan and peace keeper, and once mentioned as being a protester. [END] 
[1]  [DOC] Xavin is a fictional superhero in the Marvel Comics "Runaways". They are a Super-Skrull in training, created by author Brian K. Vaughan & artist Adrian Alphona, and debuted in "Runaways" vol. 2 #7. Although Alphona was the series' artist at the time, artist Takeshi Miyazawa first drew the character on print. Xavin had first appeared to the Runaways, taking on the form of a black male, but changed into a black female just for the sake of Karolina Dean, a lesbian whom they were to marry. Xavin is often seen as a male, simply to be "intimidating". Xavin, often called "Xav" for short, is known for their obtuse and warlike personality. They had originally found it hard to fit in with the Runaways due in part to their constant gender switching and unfamiliarity with Earth values and norms, though through proving their loyalty to the group, found acceptance. They are the child of the Skrull Prince De'zean. [END]  
Answer: in the series "Runaways"
in the series "Runaways"