First, kudos to Llywelyn for a long career of recycling the Lebor Gabala and other medieval translations of Gaelic myth as transcribed by monks. The monks unfortunately didn't have a contract with Tor/Forge to pump out the tales as fantasy. She has done a service in keeping people interested in western Europe's oldest mythology, even if it is reduced to pablum. Anything for a buck, in Big Phat Publisher land.
That being said, this is a 2.5 stars effort but am showing it as a 3 for good measure. This title is not up to her personal best and as others note, it reworks her own title, Bard. Imitation is the sincerest form of flattery even when it's your own work, apparently. Overall, this story seems to have been composed in the mornings before lunch and a substantial naptime. I'm getting to that age also so good on her for the nap. Read it at your peril. If a few Arthurian references were added, it could be called The Nasal Mists of Avalon. It's fantasy of a disappointing, simplistic sort.
Only The Stones Survive mixes the neolithic megaliths ( Bru na Boinne) with copper/bronze age events and throws in the iron age. Just to be on the safe side? ---It also adds anachronisms to the ones beloved of those transcribing monks, like chariots and gems; neither of which would be an oirish thing a'tall. Difficult to drive a chariot* over rocky trails. *Note, Some Pretanni tribes used chariots ---but not until the Roman era in Britain/Prydain. Of course there's no anchor date here and a mishmash of cues so hey, where are the Romans? Not far behind. Caught in the nasal mist. An example of an added anachronism, and that also doesn't suit this region, is to have characters writing, and on wax tablets ( see p 23 of hardbound). And there is the overly florid, and sometimes insipid prose, and misuse of buzzwords as if those were symbiotic. This reduces Europe's oldest mythology to fantasy that relies on every last fuzzy-green feelgood trope when not bemoaning poor old Eriu and its tragic history.
There IS a new paradigm for how Gaelic language and culture arose, but you won't find it here. Despite her personally knowing Sir Barry Cunliffe, emeritus, of Oxford and now retired; Llywelyn does not incorporate the new paradigm. Countless mention is made of 'Celts' coming from the 'northern forests' , ie, from the Continent TO the Isles: the old model. The new paradigm fits better with the evidence in archaeology, and linguistics, and genetics: there was no invasion of a distinct 'race' of Celts. Gaelic most probably arose on the Atlantic coasts as a trader tongue and established itself firmly in the Isles before it washed inland along trade rivers on the Continent. There are many excellent nonfiction volumes on this topic. None of them are in the author's Bibliography at the back of this title. Contact me here on GR if you'd like to be updated and edified. Eg, Facing The Ocean, Celtic From The West, and etc.
Readers who want an accurate depiction of "prehistoric" Eriu should read *accurate* historical fiction based on recent archaeology ( rather than volumes from the 1970s) about the great mounds of the Boyne and what happened when marauders came into Ireland. Llywelyn received a HF title that uses the new paradigm for ancient Ireland, a few years ago at an Irish authors' event, so she had ample chance to flatter it [ Bending The Boyne ] in this work---she did little enough of that, preferring to mimic her own fantasy bias. The work could also have been titled, Only The Cliches Survive.