A couple hours on the Darklake and the group learns that this will be no pleasure cruise.
After a half dozen or more tunnels, leading from their lake cavern, become impassable the need to always be back-tracking becomes tedious. One tunnel's ceiling is to low for the group allow the group to pass. Another narrows to only eight feet wide, an has no way to get the mushroom craft through.
Part of the trouble is not being able to see but sixty feet of a path at a time, but light on the water would probably be a beacon noone wishes to light.
A quick current (of which their have been plenty) pulls the group into another cove where the walls narrow a bit. The speed helps wedge a boat into the narrow fifteen foot gap, but it isn't so bad as to damage the groups craft. Catching a quick breather everyone stops whispering amongst their selves as a strange sound echos throughout the area.
*bou-oup* *bou-oup* bou-oup*
"Look up! Look up!" Buppido shouts as he lifts a shortbow to target the darkness above you

The derro lets an arrow fly as eight of the odd floating creatures descend to attack.
[sblock=Combat]
Buppido free atk; [roll0], dmg [roll1]
Thia also gets a free atk for having her weapon at the ready.
Then Round 1:
Atallia
AC:15, HP: 27/27, 4/4 Ki, HD 4/4
Grudach
AC:16, HP: 51/57, Rage 3/3, 4/4 HD,
inspiration die
Kildrak
AC:18, HP: 36/36(DR3), Spell Slots 3/0/0, LoH 20/20, 4/4 HD
Finn
AC:13, HP: 22/27, Slots 2/2 (2nd lvl), 4/4 HD, mage armor 1/1
cantrips: eldritch blast, friends, magic stones, light, mage hand, spare the dying, frostbite, prestidigitation
Thia
AC:16, HP: 27/27, Spell Slots 4/3/0, Inspiration(d6) 2/2, 4/4 HD
cantrips: shocking grasp, message, true strike, light
Darkmantles: all are AC:11
1) 22/22 - 30' from J08
2) 22/22 - 25' from L09
3) 22/22 atk: Grudach; [roll2]
4) 22/22 atk: Finn w/advan; [roll3], [roll4]
5) 22/22 atk: Buppido; [roll5]
6) 22/22 atk: Derendil; [roll6]
7) 22/22 - 40'from N12
8) 22/22 atk: Eldrath; [roll7]
[/sblock]
[sblock=Map]

[/sblock]