The reader first meets Michael in Chapter 1 where he seems worried about his prematurely born little sister as well as his parents. Michael also moves into a new house not knowing what it holds inside. It seems that he also feels lonely as their parents are busy with their baby and their dirty house, and no one to spend time with.

As the novel develops so does Michael. He becomes adventurous as he finds a new friend called Mina. Not knowing what the garage holds, he finds a mysterious creature and doesn't know what to do. He keeps it a secret until he can't keep it anymore. He decides to tell his secret to Mina, and Mina falls in love with it.

By the end of the book, Michael is relieved as his sister comes back to the house safely, but also a little sad when Skellig leaves his place to find a new place to go to.