Jack and Annie didn't know what the map means.
At that time they felt running out of air.
Jack and Annie took floating steps toward the moon base.
They held their breath as if they were underwater.
After entered the moon base, they opened their visor and took a long, deep breath.
They took off their suits, helmets and all things.
They found the tree house was still there and they felt relief.
They found Peanut also. They thought they could found the Pennsylvania book but it was nowhere.
They were embarrassed. After a moment of time, Jack tried to draw lines between stars in the memo which the moon man gave.
After Jack drew all lines completely, they found it showed a mouse.
That's right. It was the last thing Morgan asked.
They pulled down Peanut besides M things and chanted. "Moonstone, mango, mammoth bone, mouse"
Suddenly, a bright light filled the tree house and then Morgan le Fay stood before Jack and Annie.