There is always one skulking around Fathomking’s Hold, although I once found one just south of Irem but that may have been a random addition. Lorn Flukes are dangerous up close, but as of the latest build their ranged attack does just 2 damage which barely qualifies as a nuisance. Keep your distance and fire off some salvos, then when it gets close just hightail it out of there with heated engines (Avid Suppressor helps). After escaping turn about face and repeat. Every time you kill it there is a chance you can harvest 3 Whispered Secrets, which is how I got all of my stats up.
edited by Owen Wulf on 2/24/2015