Agni is god of fire and lightning, Kali is the black earth mother, Karttikeya is the demigod of war
In the book, Kali is a "lesser goddess". I don't know a ton about Hindu/Vedic religions, but I do know that calling Kali a "lesser goddess" is a bad idea. You don't fuck with Kali.
Text reads, "I remember playing with the bicycle and also frogs."