A Tam-Lin story, though not entirely. When Jan's boyfriend Tyler disappears, she's upset (thinking it's his way of ending their relationship) and then she's angry and finally she decides to confront him, only to discover that he's well and truly missing. AJ and Martin spin her a tale about Tyler having been 'taken' which Jan finds hard to believe until the bus she's on is attacked by goblins. Things spiral into weirdness from there. AJ and Martin aren't exactly human, they're supernaturals, but the fae (who have taken Tyler) are preternaturals, looking for a way to infiltrate our the world, and if they find it, they won't be kind. Though based on Tam Lin this is a modern day story with computers and tech. It's nicely written, but I confess I'm not rushing to get the sequel. So many books, so little time. However this is complete in itself. No cliffhanger ending.