On their way to the location, Barry and Cisco had decided to pick up a little secret weapon to help gain Firestorm's trust, since while they both had their hopes about the Beyonder, they also needed to be prepared in case that wasn't the case.
"Professor Stein." Barry said, getting the homeless burning man's attention.
"You, you recognize me?" the man asked.
"Yes, look, we're with Star Labs, we can help you if you'll let us." Cisco said.
"Why should I trust you?" Firestorm asked.
"Because it's not just us here." Barry said as Clarissa Stein came into sight.
"Clarissa." Martin said.
"Martin, is that really you?" Clarissa asked, tentatively placing her hand on Martin's face.
"It's me, but I can feel the other one inside me, he wants out and I just want to be me again." Martin said.
"And please, go with these people, if they say they can help you, trust them. Because Lily and I, we miss you and we want you back." Clarissa said.
"Okay, how can you help me, or well, us I suppose." Martin asked.
"With this. It's a quantum splicer. It's a fission device that's theoretically designed to bombard your atoms with as much energy as they experienced in the particle accelerator explosion. Should be enough to separate you. Hopefully." Cisco said as he held out the splicer.
"Are you certain this will work?" Stein asked.
"Is anyone ever truly sure in science." Cisco said.
"True enough. Besides, considering the circumstances, we do not possibly know any consequences of remaining in this state." Stein said as he attached the splicer to his chest.
"We should probably back up." Barry said as they all took a few steps back as the splicer activated and after seeing the big blaze of fire, the form of Firestorm was replaced by two familiar people.
"Martin." Clarissa said as she walked up to him.
"Clarissa, oh how I've missed you." Stein said as they kissed.
"Yo, as cool as this all is, would someone mind filling me on what's been going on?" Jax asked and Barry just rolled his eyes.
"Happily, but not here. I'm Barry Allen by the way." Barry said as he held out his hand to Jax, who shook it.
"Jefferson Jackson, but everyone calls me Jax." Jax said.
"Cisco Ramon and Jax, Professor Stein, we need to get you two to Star Labs so we can run some tests to determine if there were any other side effects of the merge you two went through." Cisco said, though he noted how relieved Jax seemed to look at the sight of Professor Stein.
"Okay, so, how are we going to get there?" Jax asked.
"Dude, show them." Barry said.
"With pleasure." Cisco said as he opened up a breach.
"How did you?" Stein asked.
"It's a long story, but short version is that Barry and I were both affected by the same energy that merged you two into one body, just not quite in the same way." Cisco said.
"Astonishing." Stein said.
"So, what can you do?" Jax asked Barry, though he sounded like he already knew and there was a bit of recognition in Stein's voice as well.
"This." Barry said with a grin as he sped them through the breach before Cisco followed and it closed behind them.