So closely does [Ghosts I Have Been] follow The Ghost Belonged to Me … that at times Peck's sequel on Second Sight verges on déja vu. Once again there's a child-ghost in trouble and once again an eccentric oldster steps in to take Alexander and Blossom on exotic travels. But no matter. This is still a blithe and spirited occult comedy with fewer genuine spooky moments but plenty of out-and-out belly laughs. Plucky Blossom Culp, Bluff City social outcast, in 1914, starts out as a mystic manqué tricking gullible classmates, but then suddenly she starts having honest-to-goodness visions: first of a car accident, then strange flashforwards (even one of the moon landing), and finally a trip back twenty months in time to relive the watery demise of a British boy who sank on the Titanic. For Blossom—and readers—it's a night to remember…. Never one for false modesty (on page one Blossom bills herself as "the most famous girl in two countries"), Peck's heroine proves to be such a redoubtable "Seeress" that despite the extravagant self-promotion, she just about manages to live up to the hype.
"Younger Fiction: 'Ghosts I Have Been'," in Kirkus Reviews (copyright © 1977 The Kirkus Service, Inc.), Vol. XLV, No. 18, September 15, 1977, p. 991.