Time Pebbles

Tekla, son of an ancient shaman, loses Ka Li when she is abducted by a brutal tribe of Denisovans in the Late Pleistocene. Ka Li escapes unarmed and flees across the Bering land bridge becoming hopelessly lost in its endless tracts. Only Tekla cares enough to search for her. As Ka Li survives fierce predators and scarce resources she leaves behind a series of signal cairns to help Tekla find her. Skipping forward 60,000 years, Helen Ryland, archaeologist, unearths one of Ka Li's surviving signal cairns and realizes she has found trace of people who populated the Americas even before the Clovis culture. Helen's detective work tracking Ka Li's timeless signals across the Alaskan wilderness now intertwines with Ka Li's story. As Helen solves the puzzle of the signal cairns she finds universal fame and suffers devastating misfortune. In the end Helen discovers that Tekla's devotion to Ka Li had not died even though six hundred centuries had passed.