Scott looked back at the red planet as Thunderbird 3 left Mars behind, Alan looked across to his elder brother.

"Are you alright Scott?"

"Hmm? Oh yeah, it's just that footprint frozen in glass. It was Dad's. Maybe that's the only thing left of him."

"Ah."

Scott sighed, "I'm sorry, I'm moaning again aren't I?"

"Yeah."

"I don't mean to."

"I know that. Scott, what was so special about that footprint?"

Scott smiled, "I remember when Dad came home and announced that his print was on Mars, we didn't believe him. That being said, we were pretty young so we thought he was joking. Mum was really proud of him."

Alan hit the ION engines, "was I born?"

"Yes. But only by a couple months. You wouldn't have remembered it. Gordon doesn't either, if that makes you feel better?"

"Kinda but, I just wish I had shared some of these moments."

"You did."

"A memory though, you're lucky that you know all these things Dad did."

Scott reached across and rubbed Alan's hand, "you have other memories of him, and they're the ones to be treasured."

Alan nodded, "yeah I guess that's true."

An hour passed and Thunderbird 3 landed back on the island, Scott made his way to Virgil's room and knocked lightly, but hearing the sound of a keyboard being played he knocked louder.

"Yeah?" A voice sounded from inside and Scott pushed the door open, Virgil looked up from the keyboard and smiled, "hi Scott."

Scott closed the door, "composing?"

"Uh huh," Virgil raised an eyebrow, "what's on your mind?"

Scott sat down on the edge of Virgil's bed, "we found something on Mars."

Virgil sat back from the piano, "which was?"

"We found Dad's footprint, preserved in glass."

Virgil smiled, "he was so proud that he made that print."

"Yeah. Alan was asking me about it on the way home, I wish he could remember it properly."

"There are other memories of Dad," Virgil sat down beside him.

"This one is special Virgil, Dad basically gave Alan Thunderbird 3. But all those missions dad went on, Alan was either too young to remember them or wasn't born."

Virgil nodded, "no I know. Dad will come home Scott, I promise you he will."

Scott sighed, "when though Virgil? We find more relics and memories of him, but we never find any sign of him coming back or even being alive."

"Don't say that. He's not dead."

"He's as good as," Scott hung his head turning away from his brother, "what's the point in thinking he's going to come back?"

"We need hope to keep going Scott, if you lose that we don't have anything to hold onto."

"I'm sorry, it's just he wanted me to do everything, and said if anything happened to him, I would lead everyone on."

Virgil wrapped his arm around Scott's shoulders, "and you do, you've got us to fall back on. Don't forget that."

Scott chuckled, "yeah. I need to remember that," he rested his head against Virgil's momentarily and smiled.

"Dad would be proud of you."

"Thanks, Virgil," Scott stood up, "I'll go and check on Alan."

Virgil nodded as Scott left his room, "oh brother," he smiled to himself before going back to his keyboard.