Final answer:
The texts provided do not contain information about what Mrs. Jackson tells Percy about going to another boarding school. However, alternative educational options such as homeschooling or specialized schools could be considered by characters in similar situations.
Step-by-step explanation:
The extracted texts provided do not directly answer the question of what Mrs. Jackson tells Percy regarding whether he will be sent to another boarding school. However, typically in literature, when a character like Mrs. Jackson is faced with the decision of sending a child like Percy to another school, she might consider either finding an alternative form of education or adjusting the current situation to better fit the child's needs.
An example of an alternative option that a character in a similar position may consider is homeschooling, or perhaps a school that specializes in supporting students with particular needs or talents.