Miss Carter, Schoolteacher by Joannie Kay

Miss Carter is the new schoolteacher in Haswell, but she has a secret. She is really Charly Burnham, Deputy U. S. Marshal, working undercover to find a bank robber. However, she has a problem: Sheriff Geoff Thorn is flirting with her, and making his interest in her known. She would love it if he was interested in the real Charly, but Miss Carter is not real. Charly gave up teaching when her father was murdered. She pinned on a badge to help her lawmen brothers find the killers, and now she feels guilty for using the children to find a thief.

Geoff likes everything about the new schoolteacher, until she flat out disobeys him, going to see a parent who is known to be hostile toward women. Geoff isn’t shy about putting her over his knee to give her some schooling of her own. When he learns who she really is, he is furious that she didn’t come to him right off and tell him the truth. What about the children when the bank robbers are finally caught? Who will teach them then? And what about him?