There were a total of three submissions, two from JT and one from /dev/joe, which I reproduce here below(with the blank tiles marked by capitalization toggle).
JT(1):
The quiz every xenobiologist just worked upon is over. Crap! Another
guage will be needed to aim at any diffErinG Malacasi.
[ Using a made up name I thought was a bit unfair. ]
JT(2):
"The quizling goblin is dead."
"How difficult?"
"Xena just smacked it up."
"Verily, a great warrior, a boon to see."
"Aye, never moRe on paR."
[ Pretty clever, I thought. ]
/dev/joe:
I said to a rude beaver, "Many a page in ancient stories is true, like
the following: A quicK brown fox jumped over the lazy dogS."
[ Not bad, but using a pangram is a sort of shortcut... ]
Thus I declare that JT has found the Treasure, with eir second Scrabble story.