If a Tumor Familiar based on a monkey is without its master and needs to talk, can only tumors understand it or can monkeys understand it as well?
So, in my campaign, the alchemist master had been kidnapped, leaving the Tumor Familiar with the the party for interrogation. My PC was of a level such that the Tumor had the abilities of Speak with Master and Speak with Animals of Its Kind.
Could the druid have somehow spoken with the tumor without using Tongues?
Edit: One player jokingly remarked, "I have to say that I don't feel this was adequately covered by the rules."
Speak with Animals of Its Kind (Ex): If the master is 7th level or higher, a familiar can communicate with animals of approximately the same kind as itself (including dire varieties): bats with bats, cats with felines, hawks and owls and ravens with birds, lizards and snakes with reptiles, monkeys with other simians, rats with rodents, toads with amphibians, and weasels with ermines and minks. Such communication is limited by the Intelligence of the conversing creatures.
tumor familiars have no animals of approximately the same kind as itself, so no they cant talk to even other tumors with that ability. The devs made it clear in the improved familiar FAQ that tumors are lumps of flesh in the shape of animals, not actually animals/magical beasts/etc
tumor familiars, as lumps of flesh in the shape of animals, can’t become Improved Familiars