|summary=The latest in Rick Yancey's Monstrumologist series is a must-read for horror fans. Beautiful writing and outstanding character development make this one of my very favourites so far this year.
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The year is 1889, the third of young Will Henry's apprenticeship with Pellinore Warthrop. The peace - such peace as there ever is in the life of the monstrumologist - is rudely shattered by the arrival of a poisoned sailor from Whitechapel, half-mad with despair, delivering a package from the doctor's old nemesis Jack Kearns in the hope of finding the antidote to the toxin Kearns has infected him with. So begins a quest for Will Henry and Warthrop which will see them look for the holy grail of monstrumology, the ''nidus'', and lead to their most exciting and horrifying adventure yet.