Lest Darkness Fall, de Camp's first book on Holt's list, was an excursion into sixth century Italy. This gives even fuller measure with two jauntings, first, into the land of the Noras gods, second, into the land of the Faerie Feerie Queen. Harold Shea, a psychologist determined to distinguish himself, experiments with his master's theories of time flight, is successful (though not in the desired destination) and is able to aid Odin, Thor, Loki, against their enemies the giants. Cursed back by a witch into his own century, he makes a second trip with his master, and the two of them find that Spenser hadn't told half, have strange adventures, and Shea returns to the present day with the girl he loves. An application of current knowledge to the periods in which they adventure, done with some humor and modern dress. Pleasant entertainment, not topping The Sword In The Stone, however.