Rumfuss is very large with very thick skin. It was told by Cabaro in the Tales of the Great Beasts that he was the least liked Great Beast and he had very few charms. Even Jhi herself struggled to find many positive attributes of Rumfuss; she eventually managed to say that Rumfuss stayed true to hims and had a good heart. Soon Rumfuss continued to add on that he ate more than his own weight, leveled forests and bashed stone walls. It was shared by Essix that she had seldom seen the boar happy and few things amused him as much as arguments.
Main article: Talismans
Rumfuss's talisman is the Iron Boar. It makes the user's skin impenetrable.
In the Books
When Conor, Meilin, Abeke, and Rollan arrive in Glengavin, a banquet is thrown in their honor. While they are sleeping, Devin Trunswick and Karmo arrive there in the night. Uraza hears Devin and Karmo and sneaks out of Abeke and Meilin's bedroom. Kunaya goes after Uraza. Abeke wakes up, but is captured and put in a trunk outside of Glengavin. Devin and Karmo look for Rumfuss, and the team splits up. Conor and Finn Cooley look for Lord MacDonnel's spirit animal, while Meilin and Rollan search for Abeke. They complete their missions, but then Abeke, Meilin, and Rollan use Essix to find the way to Rumfuss. They find him, but Devin follows them in and it is revealed he snuck a army of Conquerors into Glengavin. There is a battle. Conor and Finn hear it, and find Rumfuss and the rest. Conor is nearly killed in the battle, but Rumfuss eventually saves Rollan and Conor. The group win the battle, and Rumfuss thanks them for fighting for him, which results in him giving them the talisman, the Iron Boar. Rumfuss travels back with them out of his gardens, and is freed from his prison by Glengavin guards.
Rumfuss sacrifices himself by ramming the Evertree.
Rumfuss is summoned by Dawson Trunswick, to the surprise of his brother Devin. The Earl of Trunswick had planned a celebration for Dawson, but it never happens due to Zerif and Raisha stealing Rumfuss away.
- Rumfuss is a bit slow in speaking, but can easily get a point across. ("Why.... give it to you?")("Thank you...... for fighting with me.")("Say...you want.")