As the title states, the audiobook for The Blue Mage Goes to Earth is out on audible. You can find it here: https://www.audible.com/pd/B097NDVP7G/?source_code=AUDFPWS0223189MWT-BK-ACX0-265098&ref=acx_bty_BK_ACX0_265098_rh_us
As always, thanks for reading!