Every book needs conflict and something to drive the story forward.
Often this is found within our characters. Their past haunts them. They suffer from shortcomings. They struggle to achieve a dream. All of these things not only add depth to a story, they can be the core plotline. Internal conflict is my favorite and I’ve used it in all five of my books:
Book I - Lori dreams of winning an Olympic Gold Medal in swimming and is driven by this goal.
Book II - Sarah suffers from a poor self-image and struggles to find her value and place in life.
Book III - James is haunted by a past of abuse and fights to rise above the damage and be a better person.
Book IV - Mike is consumed by guilt over two incidents and strains to learn to forgive himself.
Book V - Heather battles a selfish attitude, floundering in her attempts to form meaningful relationships.
What internal conflicts do your characters face?