They separated after a fight broke between the two. Things were said that shouldn't have been said and before either of them knew it, Greg ran off into the woods and wouldn't respond to any of Wirt's pleas and apologies. Normally, their little quarrels wouldn't get between them like this, but there is always that one thing you do not bring up with people in any argument. For some people it's their flaws, the meaningless politics, redundant religion, their past mistakes, and so on, but for Wirt and Greg, it was family- their parents to be more exact. Greg may be happy with his new family, but Wirt was still rather upset over the big change. So when one thing went to another, Wirt had blurted out his annoyance, masked as untrue hatred, at Greg and his father and how he wished their parents never met and such.
After failing to rouse any response from Greg for over an hour, a scream cuts through the forest's quiet.
"Wirt!" Greg's voice pierces through the crowd of trees. "Wirt, where are you?" he sobs loudly from somewhere unknown to Wirt, "Help me!"
"Greg! Greg, just stay put, I'll find you!" Wirt shouts back as he searched relentlessly for his dear brother.
"Be strong, be courageous," Wirt murmured to himself repeatedly as he wandered through the forest. "Be strong, be courageous…" It was a phrase his mother would always quote from the Bible and taught Wirt to do the same whenever he felt afraid.
Hours passed with no progress of finding his brother. They called for each other relentlessly, but when Wirt tried to ask Greg what was going on, he never got an answer.
"Fear not," a deep voice purrs from the shadows, drowning out Greg's cries, causing Wirt to become pale and covered in goosebumps.
"Be strong, be courageous," Wirt continues to anxiously chant, walking quicker now through the endless woods.
"Forget the former things," the voice continues on calmly as the dark of the forest began to close in. "Cast aside your burdens and let me sustain you. Rest."
"No, I have to find Greg!... I-I can't breathe," Wirt panted as the darkness wrapped itself around him, "I c-can't see!"
"Worry not, my child, let me be your guide," the voice cooed.