Doctor Warthrop goes hunting the "Holy Grail of
Monstrumology" leaving Will Henry alone for the first time. But what hurts
the most is that Warthrop doesn't go alone, but takes with him his new eager
for hunting assistant, Arkwright. Will Henry doesn't cope well with his
doctor's decision and when some months later a letter arrives declaring him
dead, Will knows that he needs to go and find him.
