“River Run” continues: moving deeper into the worlds of Anna's book, Swamp Thing's loyalties are tested when he meets Abigail Arcane, an evil young woman who's come to live with her kindly Uncle Anton.

In the third story of River Run, The Bad Seed, Swamp Thing meets an alternate version of Abby Arcane, living on an Iowa farm with her uncle Anton Arcane, his wife Anna, and their son Joey. But, this world's version of Abby is nothing like the version Swamp Thing knows, and she has a few ugly surprises in store for her relatives.

Note: This chapter is inspired in the earth-3 concept from the pre-crisis multiverse.