John Byrne's Next Men — Dark Horse Comics
Issue: #14
Danny and his half-sister had left their mother house in order to join New York and travel like stowaway in a truck. But Chrissy wakes up Danny and tells him she is Gillian. Apparently, the other sister of Danny, Gillian, is a uncorporeal mutant who live in Danny's head for a while. And, this time, she succeeds to take possession of Chrissy.Despites of that, the two children (plus Gillian in danny...
First appearances: Sandy Tolliver, Gillian
Creators: John Byrne, Barbara Randall Kesel, Matt Webb
Characters: Mark IV, Danny, Bethany, Sandy Tolliver, Nathan, Control, Amanda Watson, Gillian, Thomas Kirkland