(W) Sam Humphries (A) Francesco Biagini (CA) Frazer Irving, Garry Brown. Author(s): Sam Humphries THIS IS IT* THE FINAL ISSUE! For the first time in her life* Heidi is absolutely certain of what she must do next...and Rex is forced to face the consequences of the events he has set in motion* as the final push against HIGHER EARTH comes to its epic conclusion!