An Adventure that Spans Time and the Sea from the South Coast of Maine to the Lands Behind the Northern Lights Sim Spotswood decides not to keep his after school appointment with Dr. McCreedy to get his teeth straightened. Instead he wanders to the clam flats where Lost River meets the sea and where a Viking ship, unearthed from the silt of a thousand years, sits like the skeleton of a dragon in its cofferdam. Sim discovers buried in the sand, a small medallion the size of a half dollar. That he should be the one to find it is no accident. At least Dr. Asneath Plever of the Smithsonian doesn't think so. Nor does Winifred Hazel Chit, the Witch of thunderhead Cliff who has waited one hundred and eleven years for Sim to undertake the adventure that now unfolds. As more of the medallions appear Sim encounters other searchers including Splitface and Gold-Tipped-Smith who know the power of the Starlight Medallions and want them for themselves. Sim, who has never known his father, lies at night on the widows walk of his home with his dog, Walter, watching the celestial canopy, waiting for a shooting star upon which he can make his wish, the same wish he has made every night for a long as he has known the words of the wishing verse. Now as he travels with the Starlight Medallions to places where no one has gone before, it seems that wish may come true.