The Lanvernite Succession
The Dragonspine is a mountain range located in central Lanverness, between Greatminster and Burnmouth. The Dragonspine is snow-capped all year, and surrounded by a thick, wild forest called Spinewood Forest. There are no settlements or roads in the Dragonspine, and many large dangerous creatures, even dragons, have been seen there.
The PCs entered the Dragonspine to hunt for a red dragon, whose brains they hoped to give to the Sage of Deancroft. After several days of searching, they located and slew a red dragon in her cave high in the mountains.