How many Inquisitors of the Ordo Hereticus have laid down their lives to uncover the sins of Askellon is a figure unlikely to be fully tallied, for since the Vaxi Atrocity few operate there openly or in wide coalition. Some, however, have managed to uncover secrets as tantalising as they are horrifying, including a handful of pages from Dyrulli’s lost writings—parts of his extensive Marginalia on the Apocrypha Askellios. Indeed, it appears that he somehow gained access to volumes of the Apocrypha no one believed still existed.
While many of these fragments are held to be little more than the fevered ramblings of a mind long surrendered to madness, others hold that they must surely contain at least a portion of the truth. To this day, his collected writings on the subject of the manifold sins of Askellon are known as the Dyrullin Apocrypha, forming as they do an addendum to, or lost volume of, the Apocrypha Askellios. Few have access to this mythical tome, for scant copies were printed, and the majority of these are sealed away in heavily guarded vaults. It is said that "only a handful remain within Askellon itself, for most were burned along with Dyrulli and his circle". Outside of the sector, "one copy was reputed to have been locked beneath the Tricorn Palace, the centre of power of the Calixian Inquisition". Persistent rumours claim that "at least one copy was delivered to Terra in the hands of Dyrulli’s most beloved surviving disciple, though for what purpose has never been determined".