You can get to the dwarven halls and the upper feeding grounds from here.

There are several nasty traps here, especially the rolling boulder

The puzzles here stretch over the Lower FG, Upper FG, and the Dwarven Halls.

The throg shaman has an item to let you through the rune-guarded doors without harm.

Spoilers

Press shift-F8 to display current location.

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- Start @(27,13)
- Stairs up to Temple2 @(27,13)
- Stairs down to Dwarf Hall @(12,23)
- Stairs up to Upper FG @(7,3)
- Stairs up to Upper FG @(5,17) can only be reached from the upper FG

- Throg shaman @(27,27) has 2 red feathers. Putting one in inventory allows you to pass through guard runes without damage.
- Boulder trap @(19,16), heading S down corridor, boulder follows you. Either run fast to side passage, or turn sideways and watch the boulder roll past.
- Button @(20,32) opens secret door behind you.
- Button @(13,14) disables arrow trap behind you
- Button @(14,16) disables arrow trap to the left
- Button @(14,21) disables arrow trap to the left

- Manna circle @(18,33), behind secret door
- Rune scroll - Translocate rune in chest @(25,19)
- Rune scroll - Scare rune @(27,27)
- Throggish key (2) held by throgs @(13,19) & @(29,30)
- Half of a very sturdy key @(27,27), carried by throg shaman
- Piece of a strange device @(27,2)
- Piece of a strange device @(13,8)
- Piece of a strange device @(6,21)
- Plate chest & plate leggings @(31,7)