LAST ONE STANDING! “If you found yourself stranded somewhere in the universe with no knowledge of where you were, how quickly could you determine an answer to that question?” It's a thought experiment Mr. Fantastic had often challenged his children with – but now it's happening for real — to Valeria Richards! Valeria finds herself lost in a world she was never made — where even the Fantastic Four have been taken from history! But how could a world without the FF have survived the myriad threats it must have faced? What does it mean that the only heroes left are Jean Grey and Namor, the Sub-Mariner? And what does her brother, Franklin, have to do with all of this? See Val make a shocking choice you won't want to miss... with consequences that will last for the rest of this run! LEGACY #725