What did Mr. Tumnus and Lucy do in his cave? Book: The Lion The Witch and The Wardrobe.

Tumnus' Cave was the home and dwelling of the Faun, Mr. Tumnus, which was located in Lantern Waste. The entrance to the cave was concealed by a large boulder, and was described as being a nice place, little but dry, and clean.

Explanation:

at the cave what did mr tumnus do to lucy. they talked and talked like old friends ... then mr tumnus started to play to lure Lucy to sleep. why did mr tumnus start to cry and cry at the latter part of lucy's visit.

if you are talking about the satyr then they drank tea, he did some music for her and she passed out but the most important part is that the fire turned into the past of Narnia then the future of Narnia. Then they went onto a quest to save Narnia from the current queen.