I'll keep it safe for you. [She lets him see her wrap first her large towel, then her pillowcase around the microscope. As safe as the greatest of treasures can be, inside a towel and a pillowcase at least.] We're going to be in the school shed for a few days. So come quickly!

[She does not expect what comes next. Her eyes widen slightly. With anyone else, she'd think... but House is one of her own tribe.]

Thank you, doctor, you're very kind! But I think I might be too far gone for the sulfur to help now. I've been seeing my eyes change colour and everything... do you think the same dosage of saltpeter might help?