|Lucky remembered Ferret Tooth, a Lone Dog who had begged for scraps outside the Food House. On a bitter night, he'd curled up in the park and never got up again. Lucky hadn't seen him, but he'd heard that the old dog had grown as hard and cold as the frost.|
|— Lucky recalling Ferret Tooth's demise in The Endless Lake, page 12|
| Lone Dog|
| Species |
|Names||Lone Dog: Ferret Tooth|
| Status|| Deceased (frozen)|
|Dead||The Endless Lake, Storm of Dogs|
Ferret Tooth is a male dog with an unknown description.
In the Original Series
- Ferret Tooth is mentioned by Lucky when he recalls the dangers of Ice Wind. The lone dog had once slept, and never opened his eyes again. He used to beg for scraps at the Food House, and knew Lucky, who would do the same. Lucky had heard Ferret Tooth had grown hard and cold like the frost, and that he froze to death.
- Ferret Tooth is once again thought of by Lucky, who remembers how the lone dog had curled up by a park one cold Ice Wind and never got back up from his slumber. He once begged of scraps by the Food House. Lucky longs to be a lone dog again like Ferret Tooth.
- "I was a Lone Dog once, just like Ferret Tooth."
- —Lucky, relating to Ferret Tooth Storm of Dogs (book), page 184