I have read The Ruby in the Smoke, the first book of Pullman's Sally Lockhart Mysteries. Today I found The Tiger in the Well, the third book, in a bargain bin full of fantasy books. I haven't read the second book yet, The Shadow in the North.
Should I read The Shadow in the North first, or can I read The Tiger in the Well without spoiling anything for myself?
I'm aware this series is bordering on fantasy at the most, but I was pretty sure I'd get an answer here. I think most bookstores classify Pullman as a fantasy author on account of His Dark Materials and hate to break up an author's work across sections.