On the ride back home Blueblood was contemplating. He was no master of magic, but after everything, his own son would barely be able to use levitation. He knew some unicorns had issues with magic. It was the issue with even one parent or ancestors who wasn't of the same race.Then again, the same can be said for pureblood families of the three tribes.

The issue with mixes families of tribes or even races vary. If it's a mix of the three tribes, for example, an earth pony with a unicorn parent would have a much stronger sense of magic, both in their normal means as well as the type unicorns use. However, unicorn magic is largely focused in the in head, so that can alter their earth pony flow of magic. Meaning they would have it more focused in their heads rather than the whole body, leading to rather thin, smaller bodies than normal. Trade off of strength is typically intelligence. Most earth ponies born that way carry a far higher IQ than normal.

In Blue Spice’s case, thinner Mana Pathways likely are the results of a Pegasus ancestor. Blueblood knew that he had one Pegasus grandfather four generations back, but he and Saffron were both unicorns, that Gene would be dormant again...unless… “Saffron?” Blueblood asked.

“Yes?” She replied, Turning from her gaze outside the window. Blue Spice was asleep next to her. The image would make a lovely painting.

“Do you by chance have any Pegasus in the family? Grand parent or something like that?”

“Yes actually.” She said, getting a bit cheerful. “My grandmother was a Pegasus, and my grandfather was a unicorn but had a Pegasus parent. My father was the only unicorn born to them, my aunt and uncle's were all Pegasus.”

That explains it. A more dominant Pegasus gene, mixed with my recessive one. The odds would be out there, but it would be a possibility. Blueblood thought to himself. Pegasus are known for their smaller builds, their Mana focused largely in their wings and hooves. With no wings, his natural unicorn magic is suffering, meaning his Mana Pathways might me more focused on his back or in his hooves… “Driver, stop the carriage.” Blueblood announced, the carriage stopping after he said so.

“Blueblood?” Saffron asked.

“I need to go back and talk with Dr. House.” He said, starting to open the door.

“What is it?”

“It's a theory, but I need to speak with him immediately in regards to it.”

“But we just left? Why is it so important? Is it about Spice?”

“Yes.”

“Then I’m coming too.”

“Saffron that re-”

“Blueblood.” Saffron said, cutting him off with a firm tone. “If it involves our son, then I am coming along, we both want this marriage to work, so it's best if we are both present when it's a topic we both should be present for.”

Blueblood wanted to retort, his past self whispering some rather vile and gender bias. Things about mares and their place in the home. He pushed it back, something he has become used to doing, a part of him he has been fighting. Blueblood nodded. “Alright then.” Blueblood said, taking a breath. A small victory over his past, and a potential argument avoided. “Driver, back to the doctors.”

Dr. House was not what most would call a simple stallion. His best friends were all younger than him, and he spoke down to them. The medical board only kept him on for his flawless record while using admittedly bizarre and eccentric methods. He only really took on patients to fill his weekly quota and keep the board appeased. He took on Blue Spice for a personal reason though.

That foal and him were the same. Dr. House himself has smaller than normal mana pathways. Magic school was hell, most, no, all the other normal students moved on pass telekinesis when he barely grasped it. Telekinesis was the only spell he could use, and he one day said. “I’ll be damned if I won't be good at the only spell I can use.” And from there, fine tuned his control enough to almost beyond pinpoint accuracy. His time in medical school was the result of fully mastering his telekinesis by the time he finished school, and wanted it put to use in a field where such a fine tunes spell would be appreciated.

Brain, kidney, spinal. All highly delicate surgeries he performed flawlessly. He worked on new theories and methods to try and at least strengthen narrow mana pathways, like his, and the foal he saw earlier today, to better their lives, or at least, make life for them easier. A unicorn without their horn is like a Pegasus without wings, or an earth pony without their strength. ”Dr. House, your last patient and his parents are requesting a meeting.” The front desk receptionist spoke through his offices phone. He kept it on automatic answer, and speaker was on always. He didn’t trust having phones near his ears, an odd habit, but whether it was from his own weirdness, or his old age making his mind lose it, it was his choice.

With a sigh, he pressed the reply button. “Send them in.” He said simply. He expected them to come in, saying some medicine or whatever could cure their son, or at least aid him some.

All his expectations soon flat lined, however, as the Prince began explaining his theory, that, given his wives family, and his ancestor, that perhaps there’s a change his mana pathways are in fact, larger and more concentrated elsewhere. He immediately called the nurse to start the foal up on a full body X-ray, and within the hour, they had the special X-rays that showed his whole body’s mana pathways. “Well, let’s see if you’re right, your highness.” Dr. House said, flipping the switch on the background lights, showing the foals skeleton, as well as grey lines all along his body. Notably, was a large concentration along his mid back section, hooves, and neck. Dr. House, upon seeing this, laughed, an almost mad, but triumphant laugh. “Prince, I believe we can make an arrangement. It is new, never been done, and risky, but if successful, he’ll be spell casting with the best of them.”

“Why are there some focused along his neck?” Saffron asked.

Dr. House looked upon the image again, examining it closer. “His vocal cords.” He spoke, correcting her. “They are wrapped around them, this is...abnormal, I’ve never seen anything like that before… Well, it looks like your son will be the start of a new line of magical medical practice, as well as the patient of a close friend of mine.” He said with a smile, Saffron a bit nervous but Blue Blood was confident, after all, this doctor saved his life when he was a foal, so he trusted his son’s life, and future abilities with magic with him completely.