Van Richten's Tower

Built for a party of about level 8: random treasure here is rolled for that level.
Places
- The Drowned Library: Khazan's library, cut into the rock under Lake Baratok and reached by an old well-shaft on the shore: rows of shelves gone soft with damp, half of it flooded black, and the great catalogue desk that was never a desk (The Drowned Library, docs/story/side_quests.md).
- Under Van Richten's Tower: The undercroft the archmage Khazan cut under his tower, below the level of the tarn: a stair, a hall of shelved names, a crypt the lake has got into, and his study, where he waits to be remembered (The Name Over the Door, docs/story/side_quests.md).
- Van Richten's Tower: A tower of black stone on an island in Lake Baratok, a cold tarn under Mount Baratok. A long-dead archmage built it; Rudolph van Richten keeps it now, and his door answers to the builder's name. A Vistani wagon is parked on the shore.
- Van Richten's Tower: Three round rooms stacked inside the black tower: the archmage's old hall, now a hunter's storeroom; a workroom of notes and maps; and a lantern room at the top where Van Richten keeps what matters, behind a ward that smells of thunderstorms.