Master Aemon's the best person to know where the Targeryan royalty had hidden their dragon eggs as he has no ambitions for the thrones. He can keep a secret that would had resulted in wars between prospective heirs. Since he was once considered as the primary heir, he would had been given his inheritance with a dragon's egg. When he became a Maester to decline the throne, it's much better that he kept it secret&his possession as he had more than capable of defending it when he was younger. Even when he became the Maester at the Wall, it's much better for him to keep the secret. Anyway it's likely Rhaegar also got a dragon's egg as the primary heir. He could had entrusted his inheritance to Lyanna and tasked his best knights to protect both dragon egg&Lyanna. So when Ned finally got to Lyanna, instead of finding Jon/Aegon but also Rhaegar's dragon egg too. It would need a Valerian to awaken the egg and Jon/Aegon could possibly hatch it. Also if Master Aemon had brought his dragon egg at the Wall, it could had hatched and he'd been warging with it to keep it secret and away from the Wall. If he'd been warging too often, it might had caused him to lose his sight early as he spent too much time bonding with it. After losing his sight, Aemon could be spending his spare time for several decades flying as a dragon.
Master Aemon's the best person to know where the Targeryan royalty had hidden their dragon eggs as he has no ambitions for the thrones. He can keep a secret that would had resulted in wars between prospective heirs. Since he was once considered as the primary heir, he would had been given his inheritance with a dragon's egg. When he became a Maester to decline the throne, it's much better that he kept it secret&his possession as he had more than capable of defending it when he was younger. Even when he became the Maester at the Wall, it's much better for him to keep the secret. Anyway it's likely Rhaegar also got a dragon's egg as the primary heir. He could had entrusted his inheritance to Lyanna and tasked his best knights to protect both dragon egg&Lyanna. So when Ned finally got to Lyanna, instead of finding Jon/Aegon but also Rhaegar's dragon egg too. It would need a Valerian to awaken the egg and Jon/Aegon could possibly hatch it. Also if Master Aemon had brought his dragon egg at the Wall, it could had hatched and he'd been warging with it to keep it secret and away from the Wall. If he'd been warging too often, it might had caused him to lose his sight early as he spent too much time bonding with it. After losing his sight, Aemon could be spending his spare time for several decades flying as a dragon.
This is a good one right ❤
Part 2