Siskis

Siskis are tiny, bright-eyed, highly intelligent creatures found in Mid Wood, in Topaz territory. Due to their small size, they easily become prey to the Wenn, and are therefore going extinct. Filli, Queen Jasmine's furred pet creature, is a Siskis.

Secrets of Deltora
Doran described Siskis as bright-eyed, highly intelligent creatures found in Mid Wood, in Topaz territory. With the rise of the Flesh Python population, due to the extinction of Topaz dragons, Siskis were quickly becoming endangered.

The Forests of Silence
As a child, Jasmine, future queen of Deltora and one of the three heroes of the quest for the Belt of Deltora, found a baby Siskis in the Forests that had been paralysed by the Wenn's venom and was about to be offered to the Wennbar. She gave him her antidote to the Wenn's venom and since then "Filli", as she named him, became one of two of her most trusted companions throughout her life, the other being the raven Kree. Filli travelled with Queen Jasmine on numerous quests, for the Belt of Deltora, for the Pirran Pipe and for the destruction of the Four Sisters, and were instrumental in Jasmine, King Lief and Captain Barda even succeeding many times.

Habitat
Siskis make their habitat in Mid Wood of the Forests of Silence. They can only be found there.

Anatomy
Not much is known about the appearance of a Siskis, other than that they are described as tiny, bright-eyed, furred creatures with dexterous paws. When angry, Siskis have the ability to puff up their fur to make themselves appear larger and fiercer. The fur of the Siskis is grey. The paws of the siskis have tiny claws, and they have a long tail. The tongue of the Siskis is pink, small and triangular.

Anime
Siskis have a drastically different apeprance in the anime. They are portrayed as balls of fur with no visible mouth or paws, a fluffy tail, and long strands of fur coming from the top of their heads.

Trivia

 * Filli is the only named Siskis in the Deltora Quest series.