The After Effects is the fourth novel in the Welcome to Keystone series. The book takes place over the weeks following Keystone's Election Day on which arrogant and wealthy Lucifer Riches was inexplicably named Mayor of Keystone. Summary from the back cover: Shocked and confused by the result of Keystone's election, Dennis Lawrence enlists the help of his family and friends to search for the truth behind it. Will a theory constructed by his daughters help him discover it, or will Lucifer Riches continue to reign as mayor? Eager to exercise his newfound power on his hometown, Lucifer immediately implements new business and education policies. However, he will soon discover that forcing everyone in Keystone to follow his laws may not go as smoothly as he expects. While Keystone is rapidly changing, Prescott Drake, the one person who could save everybody, is trapped in place in a bomb shelter. Will Prescott find a way to escape, or will his captor succeed in erasing all memories of the important role he played on Election Day? Finally, war is brewing between Bridget Hadly and Rosalind Sharlin as Rosalind takes a stand against Lucifer. Completely humiliated by her stepsister's public display of aversion toward her core family's beliefs, Bridget comes up with the ultimate plan to force her out of her life for good. Will she succeed, or will Rosalind prove to be stronger than she ever expected?