This is one of two endings. I couldn't stick to just one ending unfortunately. And again sorry for the long delay, I got tied up with my official book called the Upgrade Game: Project Alpha. If you want to check it out, I have it on Wattpad under the author "ThisIsMyTruth".
Three Years Later
Sherlock opened his eyes to see two unblinking bright blue eyes staring back him. The little boy sat staring at him as he sat upside down in his chair. "Hamish," Sherlock said. "What are you doing?"
The little boy blinked at him. Turning right side up, he picked his son up setting him on his lap. "Are you being a mischievous boy? Hmm," Sherlock tickled Hamish and he giggled with glee.
"Sherlock," Lauren entered the room wearing a bath robe and had wet hair. "Are you tickling William again? You know he's only going to squeal at you till you stop."
"I know." He informed her.
"All righty, whatever, it's time for Kathryn's nap anyway." Lauren picked Hamish up from her husband's lap.
"I can put Kate to bed." Sherlock offered.
"That's okay, Sherlock. You're in the middle of a case." Lauren began to walk away but Sherlock grabbed his son.
"No, it's all right. Really," he said taking Hamish back from Lauren. "Come here." Hamish smiled and clapped as Sherlock carefully took him into his arms.
"Okay, Curls," Lauren said unsure. "I trust you. I'll be out here when you're done."
Sherlock carried Hamish to their room. Hamish rubbed his eyes and yawned. Hamish knew what it meant when he was taken to the bedroom. Sherlock bounced Hamish for a second. When he finally laid Hamish down, he stroked the plum cheek.
"One day, I'll tell you all my adventures. I know you'll love them. And maybe, when you're bigger, we might go on an adventure of our own." He stroked his son's curly brown hair.
Sherlock watched his son for a few more moments as he settled in. Once he knew that Hamish was asleep, he left the room heading for the main room.
"William in bed?" Lauren asked from the couch.
"Lauren, it's Hamish."
"Sherlock, his full name is William Hamish. You're the only one who calls him Hamish. Not even John and Mary."
Sherlock looked over about to reply but when he saw her. He could see Lauren sitting there braiding her long wet hair back. Instead of giving a real answer, he ended up just smiling at her. Lauren noticed his strange unwavering gaze. Sherlock watched the color rise in her cheeks. "What, Sherlock?"
"Just thinking," he whispered.
"Oh," Lauren said returning to her braiding. "I was wondering what that noise was."
Sherlock rolled his eyes.
"I'm teasing, Curls." Lauren commented tying off the braid then gesturing for him to come closer.
Sherlock joined her on the couch resting his head down on her chest while her arms pulled him in. They had been lucky. A few months after telling him that she was sick, they had managed to have a break through and treatments saved her.
"What's wrong, Sherlock?" She whispered.
"Nothing is wrong." He looked into her hazel eyes. "How could anything be wrong?" Sherlock placed his lips on hers and ran his fingers through her hair.
There could be nothing wrong for him. The world seemed to be right.