Koko, a medium-sized Mamma Bear, lives in the Kingdom of Bears with her family. She visits the Fantasy Dimension ten times leaving behind her family. Each time she returns to her family, gaining new experiences. She keeps these clandestine expeditions secret, not revealing these to her friends and family. Throughout her escapades she hears one invisible voice, who whispers in her ears, guiding her on what to do next. The mysterious invisible voice never comes in front of her, not even for once in her excursions. 

During these voyages she is accompanied by new magical friends.  But it must not be assumed that these friends are always trustworthy. She comes across terrifying monsters, nefarious spells and despicable creatures in the magical trips. She faces them valiantly each time and at the end of the fantastical flights she escapes unhurt and is invigorated by the experiences.    

In the last chapter of the story, Koko meets a gigantic creature who asks her to stay with him abandoning her family. What will happen next? Read the full story to find out whether Koko will escape from the clutches of the enormous creature and return to her family.