1. No, Hornkeep and Undarl’s Tower are different places. Hornkeep is indeed NW of Hastarl, across the Horn Hills and beyond.
2. Undarl’s red dragon steed was Glathkarlarrogh (“Gull-LATH-car-lar-ROG”).
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Italian Archmage Karsus
@ItalianKarsus
@TheEdVerse re: Making of a Mage
1. Hornkeep apparently across Horn Hills, fly overnight SE to Hastarl. Per Lost Empires: Undarl's Tower west of Hastarl, few miles. Undarl's Tower != Hornkeep?
2. Anglathammaroth is black. Undarl rides red at start, Myrjala kills at end; red name?