Ipaxalon listens carefully, asking clarifying questions in several places. 

Eventually, he shares more of his own abilities, including much of his spell repertoire.

...that, uh, sounds like witchcraft. In particular, raising the dead is necromancy, and abhorrent to God. 

Really? According to His holy book, His priests have done so, and so did His Son Jesus Christ. 

Does he claim to perform miracles as Christ did? 

Ipaxalon is neither a god nor a cleric. But raise dead is not necromancy, as he understands the term. Necromancy as he understands it is magic that imposes some effect on a soul, usually to cause harm or to compel and animate the dead. Resurrection spells operate differently; they create a bridge between the realm of the living and the dead and they invite a soul to cross it. The soul may always decline. They also, as a rule, restore a creature's body to some degree of working order. They are thus typically classed as conjuration and healing spells, not necromancy. 

...well, it still sounds extremely sketchy. The entire way he casts "spells" sounds like witchcraft.

He's not a witch! Witches have familiars and use hexes and get their magic through the aid of a supernatural patron! They're not even Evil, any more than anyone else is.

He's not sure the technicality applies, here. 

Is it illegal to use such magic?

Technically, yes! Though modern law and criminal practice overwhelmingly assumes that only magical girls perform magic of any kind, and prosecutes the pretense of magic rather than its actuality, as an act of fraud or grift.

Quite sensible really, when witchcraft is not in fact a thing.

They may need to rethink those laws in the presence of an actual spellcaster who is neither a magical girl nor communing with spirits or fiends. 

Well, at any rate, he is not pretending to anything. If William Wilberforce, acting as an agent of the British government, tells Ipaxalon that his particular brand of magic is illegal on British soil, Ipaxalon will refrain as a matter of course. 

...he's not really empowered to make that call, he doesn't think. And anyway he's more concerned with the offense to God. Can Ipaxalon at least refrain from raising the dead until he's had a chance to get a ruling from, uh, the head of the Anglican Church, who is conveniently also the King?

Sure, that takes an expensive diamond anyway so it's unlikely to apply for a while. He makes no promises about his activities outside British territory, however.

Should he meet with the King at some point? 

Probably not for a while. He needs, like, several centuries of context. 

Fair enough.

After a bit more discussion of politics and the abolition movement, Ipaxalon (at Wilberforce's suggestion) pays a visit to an ailing member of the coalition suffering from crippling gout, removes said gout and incidentally the man's nearsightedness as well, then offers about three-quarters of his remaining healing capacity at a London hospital near Parliament. He does this in humanoid form (wearing a loaned outfit so he looks less scruffy) to at least reduce the tendency to be scared of him, but he does introduce himself as Ipaxalon the dragon in an alternate form.

(Wilberforce thought this might be a good way to continue to earn positive attention from Parliament; the disease cure in particular might interest several members with key votes and influence, possibly even the King himself, whose ailing health is an open secret.)

In the evening, Ipaxalon appears via teleport at the Shotley's port of call. (He did promise to visit their hospital today.) 

The following day is Monday. After another trip to London in the morning, Ipaxalon visits Rebecca again. 

Rebecca is sitting in the crow's nest, and singing. It's raining but she's got an umbrella that matches her dress and never more than briefly shudders in the wind.

Ipaxalon glides lazily to a hover near the crow's nest, careful to avoid disturbing the rigging. 

...The wind in the immediate vicinity of the crow's nest dies down.

She waves, still singing.

He waves back with a foreclaw and continues hovering, listening with rapt attention to the song. 

Eventually it concludes. "Hi! So what've you been up to?"

"More than I expected! I set out to provide some healing and make arrangements to monetize my teleportation spells. But when I spoke to the merchants in port, I learned something which caused me to reevaluate my plans..." Ipaxalon briefly summarizes his encounter with the slave trade and subsequent visit to London.

"Wow, you've been busy. Is that not, like, scary, dealing with all those kinds of people - I guess you're not attached to England and you could go somewhere else if you really didn't like how things turned out."