[ExI] The High Frontier free on Kindle

[David Lubkin]

The High Frontier is free on Kindle from 20 to 23 April. Info thanks 
to Mike Lorrey.

<http://ssi.org/?goback=.gde_35656_member_234159752>

>Today we have another announcement: From Saturday April 20th to 
>Tuesday April 23rd, the Kindle edition of The High Frontier is 
>absolutely free. Just open the Kindle app on your iOS, Android, 
>Windows PC or Mac and type High Frontier in the Kindle store, or get 
>your free Kindle edition directly from the Amazon.com website at 
><http://www.amazon.com/The-High-Frontier-ebook/dp/B00CB3SIAI>.


-- David.