Left for Loki is a collection of books and artefacts from the Harry Potter world. Most of them from black magic sections. In the middle of it, folded in green velvet and lain in a golden basket is a dragon egg. A parchment is rolled up and bound shut with a green ribbon. On it stands in perfect(!) Asgardian:
Beloved Father,
consider this a thank you for the times spent with me. It is a difficult task to find worthy presents - especially ones that you do not obtain for yourself already. I do sincerely hope these can reflect even an feeble part of the affection I hold for you for it would be plenty already.
Consider the one in the middle a birthday present as I am unaware of it - wrong calender and such. But I figured it is safe to say that it was within the last year. Happy birthday! A potentially belated one. It is the egg of a dragon from the world where Neville and such are coming from. I do not know if it is still able to hatch and if you would even want this. But it is nonetheless a magnificant thing, created by a creature of pure magic.