Isle of Serenity

Reviewed by Dr Roksana Parveen

What makes us human?
What happens when the boundaries between biological life and consciousness begin to blur?

Milton Hossain’s Isle of Serenity begins with an apparently simple premise: an elderly scientist, Jenki Yaki, approaching the end of her life, finds her perception of reality increasingly disrupted by memory loss. Her brain is deteriorating, and her neurodegenerative condition threatens her physical existence. Her doctor has given her a limited life expectancy. Yet certain memories return unexpectedly, suggesting that her memories of the Forbidden Island are embedded more deeply than her ordinary recollections. She struggles to reconstruct her connection with the island as these memories resurface.

Despite her limited life expectancy, Jenki travels to the mysterious Forbidden Island in Papua New Guinea to pursue her unfinished work. She suspects that its isolated inhabitants may possess genetic characteristics sufficiently different from those of other human populations to raise questions about human evolutionary divergence. She wonders whether they might represent a separate branch of human evolution. Fully aware of her limited time, she risks her life in pursuit of something she has long been determined to discover. Her journey reflects the power of intellectual curiosity and the passions we continue to nurture despite age and circumstance.

When she reaches the island, she encounters wild, human-like inhabitants whose unfamiliar appearance unsettles her. Looking at them, Jenki asks: are they human? The encounter transforms the island from a destination of scientific interest into a profound mystery that challenges her assumptions about human evolution, identity and the boundaries of our species.

Jenki is an accomplished scientist associated with cell biology and neuroscience, devoted to understanding the molecular mechanisms of cellular function. On the island, however, her scientific understanding encounters something she cannot easily explain. An enigmatic physicist, whose age is unknown, treats her through a mysterious process that transforms her at the molecular level. As her body changes, the novel raises a deeper question: if the physical body can be transformed, what remains of the person who once inhabited it?

Jenki experiences a strange dislocation between her past and present bodies, as though time itself has begun moving in opposing directions. Her journey becomes more than a quest for scientific knowledge, an escape from mortality, or an attempt to discover whether the inhabitants represent a distinct human subspecies. It becomes an inward journey towards understanding the most fundamental unit of her living existence: the cell.

The novel connects fleeting memories to the vast temporal scale of the universe through the idea of a quantum biological clock, exploring how time is experienced differently by the body, mind and consciousness. DNA, cells, protein synthesis, mitochondria, ribosomes and genetic variation repeatedly function as clues to a larger mystery. The cave inscriptions, resembling animal cells, DNA strands, DNA repair and mitochondria, raise an intriguing question: how could apparently isolated people possess knowledge of microscopic cellular structures?

The novel’s greatest strength is also its principal limitation: its intellectual ambition. By moving from cellular biology and genetics to memory, consciousness, time and identity, it opens an unusually wide philosophical field. Yet this breadth sometimes comes at the cost of narrative and conceptual resolution, leaving the central philosophical questions stronger than their answers.

In the end, Isle of Serenity is not simply a story about discovering a forbidden island. It is a story about discovering how little we understand about ourselves. If our bodies are biological systems, our memories are neural processes, and our consciousness is inseparable from our experience of time, what exactly is the “self” that survives through all these changes?
That question is the real mystery at the heart of Isle of Serenity.

The reviewer is a Lecturer, University of Manchester