Sol-leks (a dog) Timeline and Summary

Sol-leks slashes Buck when he approaches on his blind side (this is the dog with the scar over his eye).
He does very well in the traces, filling the position just ahead of Buck.
He becomes a teacher to Buck in the traces.
Sol-leks is assumed to be the next choice for leader when Spitz dies, but Buck is having none of that.
Sol-leks dies with the rest of the team when the bottom drops out of the trail.