"You can try," he corrects Lambert like a total asshole, so. Yeah, even Childermass isn't sure how well this will go. He can just fly away. Everyone else, not so much. He won't bother wasting an effort on trying to pry the hand off of his shirt, instead simply affecting a very unimpressed expression towards this entire mess.

"Just try not to touch anything that looks poisonous. Don't step on any vines. Giant flowers may try to eat you. You know, the usual for a garden intent on killing you."