"Examples of literary horror don't come much finer than The Monstrumologist, and Yancey's second volume sustains that high bar with lush prose, devilish characterizations, and more honest emotion than any book involving copious de-facings (yes, you read that right) ought to have…. Here is the introduction of an alternate, monster-plagued 1888 New York, complete with irresistible historical cameos. So far, Yancey has written both books in the Monstrumologist series as if they were the last, going for broke and playing for keeps, no matter who or what ends up on the chopping block. This is Warthrop's The Hound of the Baskervilles; if we hold our breath, maybe part 3 will come faster."—Booklist (starred review)