In their exploits intrepid researchers seek new answers from our ancient past, in the desperate hope of saving Earth from a devastating cosmic disturbance. FarTack and HomeTack - novels by GS Boughton, in the DeepStorm trilogy, about the discovery, science and archaeology by Questor reconneers of how the hominini line in prehistory evolved from its mammal ancestors to become fully human and break into the nation building of ancient civilisations at the start of this interglacial break in the Ice Age, erecting monuments such as the incredible stone circle of Stonehenge, with the ramifications that might have of mankind encountering extraterrestrial life in other solar system environments of space, upside, whether at the mammalian or dinosaur level, or even intelligent life, with the probability that those progressions in evolution are inbuilt in the genes of all life.

FarTack and HomeTack -- novels by GS Boughton in the DeepStorm trilogy

As miraculous as mankind's ascent from mammalian orders was, as is discovered in FarTack, there was another extraordinary development that Tachel seeks to unravel with a question in HomeTack --

THE REMARKABLE BIRTH OF CIVILISATION

How was it that, seemingly quite disparate of one another,
ancient peoples emerged that could form civilisations,
right across the outlying lands of ice capped North America and Eurasia,
and assimilate the technology to build great monuments,
all within just a few millennia of those Ice Age caps melting away?

She has her reconneers centre their research on monuments like the stone circle of Stone Henge in England, to discover the answer.