A Measure of SerenityA million thoughts, but only one right thing to do. Eighteen year old Serenity Ashdown has a brilliant mind: she counts, calculates, and analyses everything, all the time. Awkward. When her father suddenly disappears, Serenity follows his trail to a parallel dimension. The feds on the other side claim to want to help her go home if she helps them reconstruct the right codes for the portal between worlds. But it's soon clear they want something more: a