``` [The eggshell cracked, and a palm-sized black bird emerged.]
[The little black bird was plump, its dark eyes darting about before quickly settling on you.]
[For the past six months, you had nourished the eagle egg with your own magical power every day. Naturally familiar with your aura, the black bird immediately nuzzled toward you, fluttering its still-undeveloped wings.]
[You opened your right hand, and the plump black hatchling clambered into your palm, occasionally tumbling over and looking adorably foolish.]
["Its vitality really is far more abundant than an ordinary Black Wind Eagle's."]
[You reached this conclusion after quietly examining it with your spiritual sense.]
[The Black Wind Eagle was a Wind Element demonic beast, while the Dark Demon Eagle was a darkness- and Wind Element-type demonic beast, blessed with an earth-grade bloodline.]
[The black hatchling had only just been born, so its precise bloodline grade was not yet apparent. Even so, you could sense the vitality coursing through its body.]
["Good, very good."]
[You were delighted. Dark Demon Eagles were demonic beasts with short growth periods. With a few decades of ordinary nurturing to draw out their bloodline power, they would naturally reach maturity-the second-tier Foundation Establishment level.]
[The cultivation world had no shortage of demonic beasts with lengthy growth periods. Some turtle-type demonic beasts, for example, took hundreds or even thousands of years merely to grow up. Though their potential was staggering, their interminable growth periods could outlast even a Nascent Soul True Lord.]
[You had little interest in the latter. It took too long to recoup the investment, with too many chances for something unexpected to happen.]
[You could easily end up with your spirit pet seeing you off to your grave.]
[Next, you began raising the Dark Demon Eagle.]
[Compared with human cultivators, raising demonic