My WIP is a MG novel with a targeted length of 50k words. I am drawing inspiration from Harry Potter and the Philosopher's Stone, though my own artistic sensibilities are strong enough that the finished product really ends up very different from that novel. Plot: A boy arrives at Sullivan's Boarding Home for Boys after he is discovered at the sight of a plane crash. Sullivan's Boarding Home for Boys is a rather unpleasant place. He has no memory of anything prior to being found by the search and rescue team at the crash sight. He has no memory of his parents. However, the doctor who examined him after the crash discovers that the boy's internal organs are in the wrong places and oddly shaped. The friendly doctor hides this information. Later, we learn that the boy has some psychic and extraordinary powers (such as learning to play concert piano in a day, having precognitive dreams, and telekinesis). Also, the boy is being stalked by an unknown person. At the first plot point, he corners his stalker and learns that the stalker is a guard trying to protect the boy. The boy is a prince of a galaxy-wide space empire which is in the middle of a civil war. The boy and a dingus were meant to be hidden on earth to keep them safe. However, enemies of the empire tracked the boy and the dingus to earth and caused them to crash into a passenger jet. Now, those enemies are looking for them. The second plot point is when the boy decides that he must retrieve the dingus to keep it safe from the enemy. He also learns that, now that his ship is destroyed, the dingus is the only remaining way the boy can contact his family. The third plot point is when the boy decides to destroy the dingus to keep it out of enemy hands. Thus, he defeats the enemy, but strands himself on earth. This sets up the next novel. Question: Several potential starting points present themselves. I could start when the search and rescue team find him, when the doctor discovers his weird anatomy, the drive to Sullivan's Boarding Home for Boys, when he arrives at the boarding home, or perhaps elsewhere. How do I decide?