After settlement negotiations between humanity and the alien Tarsalans go horribly wrong, the Earth is engulfed in a mysterious green sphere-blocking all sunlight from reaching the surface. Only two scientists-one isolated on the Moon's lunar colony, the other trapped on a dying Earth-possess the minds and the means to destroy the sphere before it renders the world completely barren...



Used availability for Scott MacKay's Phytosphere

Paperback Editions

June 2007 : USA Mass Market Paperback
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Title: Phytosphere
Author(s): Scott Mackay
ISBN: 0-451-46158-4 / 978-0-451-46158-2 (USA edition)
Publisher: Roc
Availability: Amazon   Amazon UK   Amazon CA   Amazon AU   


Audio Editions

February 2013 : USA Audio edition
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Title: Phytosphere
Author(s): Scott Mackay
Publisher: Audible Studios
Availability: Amazon   


February 2013 : Canada Audio edition
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Title: Phytosphere
Author(s): Scott Mackay
Publisher: Audible Studios
Availability: Amazon CA   


February 2013 : UK Audio edition
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Title: Phytosphere
Author(s): Scott Mackay
Publisher: Audible Studios
Availability: Amazon UK