Memoirs of Harry Chesterton Books in Order

The Memoirs of Harry Chesterton is Derek Prior's darker, more unsettling corner of fantasy. It follows Harry Chesterton, a postgraduate student whose research into death and consciousness leads him toward mysteries that sit somewhere between forbidden science, occult horror, and a reality far stranger than the one he thinks he knows.

The series begins with Thanatos Rising. Harry is studying in Aberystwyth, a Welsh university town with an old monastery looming above it. He starts following a trail of dark scientific work connected to Dr. Otto Blightey, a figure whose ideas about post-mortem consciousness were dismissed by the academic world.

Then the clues become impossible to explain away.

Bodies turn up beneath a cafe. Local people show disturbing puncture wounds. The university chaplain disappears. Harry's research stops being a subject for papers and becomes a personal investigation into something dangerous beneath the town and beyond ordinary life. The story uses the familiar texture of student life, cramped rooms, cafes, conversations, and academic curiosity, then lets it become steadily less safe.

Harry is the key to the series. He is curious, bookish, and increasingly unsure whether he can trust his own perceptions. The books lean into his disorientation rather than offering easy answers. That makes the supernatural elements feel close and unnerving, especially as his search brings him nearer to Thanatos, a world connected to death, memory, and terrible hidden knowledge.

The framing is part of the fun. The memoirs are presented as documents found in an attic flat, along with Harry's final letter before he crossed into Thanatos. This gives the story a found-manuscript flavor, while also leaving readers to wonder how much has been omitted, misunderstood, or deliberately concealed.

Expect atmospheric horror, philosophical questions, dark science, and a slow slide from ordinary research into a much larger nightmare. Start with Thanatos Rising, which introduces Harry, Aberystwyth, Dr. Blightey's work, and the first dangerous steps toward the world beyond.