15 fellow sci-fi and fantasy novelists bid farewell to the great Terry Pratchett

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Mar 13, 2015, 1:54 PM EDT

The world of sci-fi and fantasy fandom was rocked yesterday by the news that Terry Pratchett, creator of Discworld and a host of other witty, wonderfully imaginative things, passed away at the age of 66. Fans, friends and colleagues immediately began posting tributes, sharing stories and saying goodbye online, and if the world didn't already know just how much Pratchett and his work meant to a great many people, it certainly did by the end of the day.

So, to further illustrate just how much Pratchett was loved and admired in the world of sci-fi and fantasy literature, we rounded up Twitter tributes from 15 fellow authors. They're young and old, beginners and veterans, writing for children and adults, but they're all united in their love of this man and his boundless imagination, and this is only a fraction of the affection and respect poured out for Pratchett in the hours after his death. 

Check out the tributes, along with links to lengthier stories, below, and stick around to the very end to see how Pratchett said his own goodbye from his Twitter account.

Neil Gaiman, who co-authored Good Omens with Pratchett 

G. Willow Wilson, author of Alif the Unseen 

John Scalzi, author of Old Man's War

Saladin Ahmed, author of Throne of the Crescent Moon 

Philip Pullman, author of His Dark Materials

Margaret Atwood, author of The Handmaid's Tale

George R.R. Martin, author of A Song of Ice and Fire

Brandon Sanderson, author of Mistborn

Mercedes Lackey, author of Heralds of Valdemar

Patrick Rothfuss, author of The Kingkiller Chronicle

Shannon Hale, author of Princess Academy

Maureen Johnson, author of the Shades of London series

Patrick Ness, author of the Chaos Walking series

Maggie Stiefvater, author of the Wolves of Mercy Falls series

Terry Brooks, author of the Shannara series

And finally, Pratchett's own clever goodbye, from the official Twitter account helmed by his assistant Rob Wilkins