The lads marvel at Margaret Atwood’s delicate prose and “lighter than air” narrative, in which sparse poetic writing conveys an alternative future vividly. But is the ending a bit of a deus ex machina, and if so, is that a problem? Or does that serve to reinforce the ideas at the heart of the book? Dukes and Bagg have a spirited but generally glowing read of Atwood’s 1985 masterwork.