The book I ordered got here, and it is really really good. You might not want to spend money on a new one but definitely see if it's at the library.

New words: jugo (juice) and Hugo (his Mexican cousin who calls him 'Pelón', meaning 'baldy'), and ya (already or finished). Please don't, as my mother does, worry that the child isn't going to speak English! I really think it's because Spanish sounds are easier to pronounce. He understands English perfectly and will repeat you when you say stuff. He just chooses to have most of his words in Spanish.