For 10 points, identify this novel about a real estate agent from Zenith, a work by Sinclair Lewis.
One character in this work preaches the "Salvation and five percent" doctrine and the protagonist helps that character in increasing Sunday school attendance. After giving a speech at the SAREB convention, the protagonist supports the conservative candidate Prout for mayor, but for a short while is affected by the liberal Seneca Doane. When Zilla is shot by her husband Paul Riedling, the protagonist changes his outlook and has an affair with Tanis Judique, but breaks up with her and joins the Good Citizen's League after his wife Myra recovers from illness. For 10 points, identify this novel about a real estate agent from Zenith, a work by Sinclair Lewis.
One character in this work preaches the "Salvation and five percent" doctrine and the protagonist helps that character in increasing Sunday school attendance.
{Babbitt}