Sherlock expected that he'd protest but he make no indication he has any intention of putting him down. He's a little concerned at how quickly the protest was cut off though and that it didn't resume.

He carries Conan up the steps to the lab and sets him up on counter before noticing that his eyes don't look quite right-the way they're darting has him a bit concerned.

"Conan? Are you alright?" He asks, pulling a drawer open all the while keeping a close eye on the boy's face. "I'm going to need to draw some blood."