The Sea Hath Spoken by Stephen Lewis (Very good, 2001, PBK, 281 pgs, Berkley Prime Crime)

Cover and pages have light wear. ISBN 0425178021

Catherine Williams, midwife and widowed shipowner, takes in two Quaker siblings, Jane and Roger Whitcomb. When a sailor is found dead, and then there’s contention at the Puritan services, the Quakers are suspect. Catherine’s Native American assistant, Massaquoit, saves Roger’s life once, but someone is determined. And Catherine is determined to find out who the killer is.