check out the She-Ra UK Lady Bird books, perticularly Catra's Ice Palace. http://www.he-man.org/publishing/item.php?id=703 . Frosta is the focus of the entire book and is in her classic toy style.
You can see the rest of the UK books here. She may feature in some others as well. http://www.he-man.org/publishing/sub...id=17&subid=99
There were audio tapes of these books which defo added to the experience of reading these books. You can listen to them here. http://www.he-man.org/audio/section.php?id=155
She features in the special UK MOTU/POP crossover comic Twins of power. http://www.he-man.org/publishing/item.php?id=2056
You can see the rest of the She-Ra UK comics here. Frosta features in a few of them.
I hope this helps!