Deafening Silence

It's not strange that Daniella Sage Lovato and Demetria Devonne Lovato are exactly one year apart. Demi was born on August 20, 1992 and Dani was born on August 20, 1993. Its not all too strange that they refer to each other as twins. It's a not strange that Dani is an exact copy of Demi. Demi is the only who is allowed to call Dani by her middle name "Sage" just like Dani is the only one allowed to call Demi "Devonne". They have the relationship many sisters dream of having.

What happens when Demi goes to treatment and Daniella goes mute?
What will happen when Demi comes home?
Will Demi be able to get Dani to talk once again?
Will everything be the same between these two sisters?