That wasn't an easy decision for the Pterodactyl. Giving up on a divine body wasn't something that any intelligent creature would do. However, freedom was too appealing for a being that had spent a long time in captivity and didn't see any hope of escaping without external help.
Noah didn't know about those drawbacks, but he had his share of worries too. Magical beasts' seas of consciousness were imperfect, but he was still dealing with a divine being.
He didn't know how advanced its mental sphere was nor how powerful it would be. There was a chance that he could suppress it due to his many assets and innate advantages over the Pterodactyl's kind, but some risks existed nonetheless.
"You are a peculiar human," The Pterodactyl said without adding anything else. The creature and Noah had reached a silent understanding during their negotiations. They knew that they would both try to trick their opponent.