Insurgent (Second book in the Divergent series)

1. Characters

1.1. Caleb

1.2. Tris

1.3. Four

1.4. Marcus

1.5. Jeanie

1.6. Leaders

2. Factions

2.1. Dauntless

2.2. Candor

2.3. Amity

2.4. Abnegation

2.5. Erudite

3. Themes

3.1. Guilt

3.1.1. Shooting her bestfriend

3.1.2. Emotions she has about her parents

3.1.3. Sneaking around with Four's Dad

3.1.4. Planning ideas withoutFour

3.1.5. Feeling the need to fix everything she had done

3.2. Loyalty

3.2.1. To her brother

3.2.2. To Four

3.3. Rules

3.3.1. The different factions

3.3.2. Battling the system

3.3.3. Being divergent