
Mysterious Stranger |

Generally it is better to remain a single class then to multiclass. This is especially true with spell casters. Each new spell level is significantly stronger than the last so while you may have more spells with two classes, you lose more power than you gain. Both of these classes also have a lot of level dependent class features so make poor choices for multiclassing. Of all classes these are probably the worst to multiclass with.
Nature domain will grant an animal companion, but be sure to pick up boon companion.

Pounce |

If you want an Inquisitor / Druid, consider going Druid with the Gray Gardener PrC? :)
EDIT: In particular, going Urban Druid 6 / Gray Gardener X with VMC Inquisitor sounds both thematic and right-down nasty to track down..