The Boy from the Moon

The Boy from the Moon summary:

An Na mentions to her mother that she wants to go and find her dad, her mom soon decides to leave and go volunteer in South Africa. An Na's mom leaves their store to her half brother Aaron who she feels some resentment for. Now when she finally finds information on the wearabouts of her dad what will happen when the only clue is a kid who won't talk? Update: After a long hiatus the author finally picked up the series again.