Shimmer of Fate. Helena Foster Paranormal Mystery, #7

Ike started this with his threats, he ran away like a coward, and I'm the one who's dead. How's that for fate? Billy Clanton sat on the pile of boulders which held his grave marker. It should have been his resting place, but he hadn't rested since that day over one hundred and forty years ago. He'd been itching to get back at the Earps. It seemed now-maybe-he had his chance. He'd bought his girl Molly a pretty pin but she lost it, now it seems someone found it. Helena Foster's friend Todd is enchanted by a pin he found in Boot Hill at Billy Clanton's grave.
Now she must find a way to remove the spell which pulls Todd back 142 years and encompasses him in the mind of Billy Clanton. Todd reveals Billy's life in Tombstone through the tough time of 1879, his proposal to Molly and his death in 1881. Helena works on gathering the witches and wizards she knows for a trip to Tombstone to unlock the mysterious spell holding onto Todd. But is the enchantment more than meets the eye?