Finished! (Took me 3 days)
Private use characters are encoded in Variation Selectors and Latin Ext. D.
This is the writing of the maþla (mathla) language I created. It is spoken by gods and contains magic.
The phonetics and lexems are based on a mixture of Proto-Germanic, Old Norse and my fantasy. It has 26 vowels and doesn't have any b, d or g sounds.