This happened on Red (not sure if your image is from red - happened to be same NPC).
Wrong book was handed in, depopping Efreeti, then quest NPC was NOT used. X hours later Efreeti re-popped, and it stayed that way since.
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“We spread the time as we can, but in the end the world takes it all back.”
[60 Assassin] Ricquire (Wood Elf) |