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160 years after the disappearance of a promising young explorer, the discovery of his missing journals finally reveals the truth behind an extraordinary adventure

In 1850 young Scottish tree-hunter John Jeffrey is dispatched by an elite group of Victorian subscribers to seek highly-prized exotic tree species in North America. An early letter home tells of a 1200 mile transcontinental journey on foot. Later, tantalising botanical samples arrive from British Columbia, Oregon and California, yet early promise soon withers. Three years after setting out John Jeffrey disappears without a trace. Was he lost to love, violence or the Gold Rush?

The secrets of the extraordinary adventure lie in his precious journals which remained lost, until their discovery, 160 years later. Green Gold is a fictional biography based on a true story told by Gabriel Hemery, a contemporary tree-hunter, forest scientist and author of award-winning The New Sylva.

Gabriel Hemery is a tree-hunter, forest scientist and published author. He has undertaken an expedition to the walnut-fruit forests of Kyrgyzstan collecting walnut seeds, and has planted tens of thousands of trees in plantations and experimental trials across Britain. In 2009 he co-founded the environmental charity Sylva Foundation. Gabriel played a lead role in halting the disposal of England’s public forests in 2012. His first book The New Sylva was published to wide acclaim in 2014. He writes a popular tree and forestry blog at

Shasta Valley, California, 25th October 1852

I remember it was a big sky, and lonely of clouds, at it surely forewarned a sharp night. Therefore, I raised a modest fire and added an extra layer of springy branches under my bedroll as a spectacular red sun descended between two giant boulders before me. Thus prepared I drifted to sleep, lying with some satisfaction beneath the canopy of another fine specimen of the new pine I had discovered a day or two before. A myriad of stars flickered between its gently swaying branches.

Sometime later while wrapped tightly in a meagre blanket, my hat drawn deep down over my head, such was the cold, I was woken by a great weight upon my chest. It has been more than one month since I last enjoyed close human comfort and I became alert immediately.

Yet, before I could react a terrible pain lanced my cheek, and I found my face to be held in a foul stinking vice. Despite finding myself blind, and with one arm caught between blanket and beast, with the other I managed to strike out, my bare hand encountering solid fur-clad muscle. So short was the coat of my foe there was no handhold. I thought then that I was confronted, not by a Grizzly, but most likely a Mountain Lion. I raised my legs to grapple with its body and rolled over to one side. I felt the flesh on my face tear open as I felt for my gun. With the stock I aimed a blow blindly at its body and, on making satisfying contact, felt its jaws loosen. Yet still it did not retreat, its claws raking my body. I fought viciously with every limb and ounce of my strength for what seemed many minutes, but must have been mere seconds, before it fled. By the time I had torn the remains of the hat off my head, I managed to glimpse only its long tail disappearing between the two boulders where the sun had earlier retreated. Yet there it paused to turn and stare. I feared for a moment it was to return, its unblinking eyes reflecting two startling golden moons, yet it evidently decided that discretion was the better part of valour. With a turn of its head it was eclipsed by the night.


The extraordinary journey of John Jeffrey

Sunday, 14 May 2017

John Jeffrey, the main character in my latest book Green Gold, walked, paddled and rode at least 10,000 miles across North America while hunting for plants from 1850-4. During the two years I spent researching and writing the book I plotted his travels in detail and can now publish the route in full for the first time.

After sailing 2,600 nautical miles from London, via Stromness in the Orkney…

Jeffrey's shooting star

Friday, 5 May 2017

Dodecatheon jeffreyi gabrielhemery

In September 1852 young Scottish plant hunter John Jeffrey came across an attractive flowering plant in northern California. After samples were received by his sponsors at Royal Botanic Garden Edinburgh it was named in his honour.

Jeffrey's shooting star (Dodecatheon jeffreyi) is also known as Sierra shooting star or tall mountain shooting star. Its glowing pink flowers, which appear between…

Film released to mark book launch

Tuesday, 25 April 2017

I'm delighted to see my first book with Unbound Publishing launched.

It's taken two years of research and writing, interupted frequently by a busy day job, to reach this day yet I've enjoyed writing the story more than I ever imagined.

They say truth is stranger than fiction, and in the case of the true story of John Jeffrey I've learnt it's even more extraordinary too.

During the winter…

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