David Osborn 
Jessica and the Golden Swan Feather [EPUB ebook] 

Using a medieval wishing charm to escape from a big city museum where she is mistakenly locked in for the night, Jessica, along with Annie-Mae, a homeless Rag Doll, ends up not at home but in OR, where the country’s evil Great Leader holds the charm hostage until brought a feather from a deified Golden Swan in Hoppitland, country of the Stick people. With a brief welcoming respite among friendly rats in their the canyon country of Rodentia, then a perilous trip across a great man-eating Vine Forest, Jessica brings a golden feather back to OR where, after Annie-Mae chooses to return to Rodentia, she uses the medieval charm, first in a heads-on defiant showdown with the all-powerful Great Leader of OR, then to wish herself safely back home.