Antigravity Handbook (Lost Science) by David Hatcher Childress (1994-11-30) $53.16 Buy Now SKU: B01K0RVRLI Category: David Hatcher Childress Description Description Antigravity Handbook (Lost Science) by David Hatcher Childress (1994-11-30) Related products INSIDE THE GEMSTONE FILE (Mind Control/Conspiracy S)4 out of 5 $15.29 Buy Now A Hitchhiker’s Guide To Armageddon (Lost Cities Series)5 out of 5 $9.99 Buy Now Lost Continents & The Hollow Earth4 out of 5 $16.95 Buy Now Sale! Pirates and the Lost Templar Fleet: The Secret Naval War Between the Knights Templar and the Vatican3 out of 5 $16.95 Original price was: $16.95.$15.75Current price is: $15.75. Buy Now