What happens to Samneric when they go Castle Rock to confront Jack?

Samneric are forced to join the other group of boys.
Jack throws a spear at Samneric.
Roger fights and hurts Samneric.
Samneric run into the forest to escape.

Samneric are forced to join the other group of boys.

When Samneric go to Castle Rock to confront Jack and his group of boys, they face several consequences. One of the first things that happens is that Samneric are forced to join Jack's group against their will. They are coerced into abandoning their loyalty to Ralph and joining the other group.

Furthermore, Jack, displaying his aggressive nature, throws a spear at Samneric, endangering their lives. This act of violence shows Jack's dominance and hostility towards those who oppose him.

Additionally, Roger, one of the boys under Jack's influence, fights and hurts Samneric. Roger, known for his sadistic tendencies, inflicts harm upon them as a means of exerting control and demonstrating his loyalty to Jack's group.

As a result of the dangerous situation they find themselves in, Samneric make a quick decision to flee and escape into the forest. Running away becomes their only option to protect themselves from further harm.