The rustling bush draws the attention of the guard to the east of the party, and the king shifts on his stump throne, looking back and forth between that and the dark imp flying above one of his subjects.

Gandalon strikes again! (technically also requires Horatio's action as he guides the imp's savage attack against the wounded frog!)

Attack: 13 Damage: 7 + 13 poison, con 11

Gandalon's stinger plinks off the thick reptile hide armor the frogman is in, not finding its way to their flesh.

The servants you can see give startled croaks and leap for the water, disappearing from sight.

The guards spring into action, the nearest one thrusting its spear into the bush that Morn wiggled.

((Trinjya, if you wanted to expend your held dagger throw at long range, you can, and then take your current turn.))

From her hiding place, Trinjya watches the frog people shift their attention to where the Imp is fighting the remaining patrol. She decides that there is no more reason for being stealthy and throws her dagger at the frog closest to her.

Attack: 18  Damage: 6  

Then she draws her rapier, jump out in to the open space between her and the camp moving 30 feet directly towards the king.

She stops, throwing a grim look acompanied with a stream of infernal curses which the creature probably does not understand but which will nonetherless pierce it's mind for 2  damage as Trinjya casts vicious mockery (Dc 14 wis save).

((Held attack is at long range for the dagger, so let's have another roll for disadvantage. Slogging into the water will slow you somewhat, but the King will be in range for your spell.))

WIS save: 7

He gives a groaning croak and clutches at his head with his non-mace hand.

Sirq looses the spell he held at the frog stabbing the bush, and moves to follow Trinjya, casting again at the same target, the spectral hand choking the life from it.

Chill Touch Attack: 20 Damage: 7

Chill Touch Attack: 23 Damage: 6

The frog king bellows, "GRIB-ROAK! ROAK! GRIB GRIB!"

The guards you can see grip their spears grimly.

((Would Trinjya get advantage because was is hidden?))

((Eh, sure. In which case Sirq's first spell finishes it and he turns the second on the other guard.))

samael moves the 30 ft. (or less if swampwater slog debuffs spd) and, since all pretense of stealth has gone out the window, eldritch blasts the nearest guard

Attack: 15 Damage: 6

Samael blasts the nearest guard, killing it.

The patrol engaged with Gandalon thrusts upwards with its spear, the leaps up and bites at the imp, but the imp evades the maw.

Attack: 17 Damage: 9 > 4

Attack: 6 Damage: 3

((Only change to the map is Samael moved up and the frog to the SW of the king is down.))

Morn moves closer to the frog king (3sq north, 3sq east - to the next tree for some cover, but I'm also guessing that gets me within 60ft of the king). "Not a perfect infiltration, but not a bad incursion," Morn says to himself as he moves forward. He then forms an arcane gesture in the air in front of him as he attempts to drive a spike into the mind of the frog king.

Mind Spike - Wis Save DC 13, if he fails then 21 psychic damage on fail and I know where he is for the next hour, or just half damage on success.

Gandalon strikes again at the patrol, and then, regardless of his success in slaying the frogman, ascends with flying movement to avoid further attacks. He's been hurt pretty badly between the previous two attacks, oozing black ichor from a rough-hewn hole in his chest. He seems otherwise unaffected by the wounds, driven on by Horatio's focused commands. (You know, probably. If the DM says so.)

Gandalon Attack: 17 Damage: 7 + 10, DC 11 con save for half.

WIS save: 12

Morn sloshes forward clenches his hand, spiking the king, who howls in croaking agony as he's struck by an epic migraine.

Gandalon is whimpering softly and muttering to himself, but doesn't seem slowed by the damage he's taken, much of its impact being lessened by his nature. He does for the patrol, and flies up (how many feet above the ground? Any lateral movement or straight up?)

One of the guards from the far side of the king leaps up to his side, spear held warily in front.

Trinjya will once again use all her movement to get closer to the King. Then she will cast  dissonant whispers (dc 14 wis save for 11 damage) on the guard next to him.

(Straight up 30ft for good old Gandy for now. Get some distance.)

Trinjya splashes up onto some shallower ground and whispers vile notes into the air.

WIS Save: 5

The guard's legs spasm, hurtling it into the air reflexively, even as the magic takes hold and turns its brains to pudding. It flops dead behind the king's throne.

Sirq splashes up and looses a spectral hand at the king, who bats it aside. 

Attack: 10 Damage: 3

The king, not liking how things are developing, hops onto his throne and leaps away from the party, splashing into the water somewhere on the other side.

((Samael's up!))

Morn, and Morn alone:

2 perception

13 stealth

Samael advances, and has a mage hand cantrip active, moving in the water looking for frogs

((You won't be able to stealth, Mage hand is an action, and advancing puts you pretty much in the open anyway.))

((Hopefully the grid below covers where you were wanting to move the mage hand, so you move up, cast it and can move it up to 30 ft in air, I'm going to say that in order to keep it corporeal enough to touch something, it will be slowed by the water to 15 ft total movement. So in this mini game of Battleship™, chose three adjacent (including diagonal) squares you want to probe with your hand. If you want/need to go beyond the grid I have here, just extrapolate to what it would be (eg, the letter row would be A0 - I0, etc.).))

(DM Question - where was Frankie bing held again? Was it near the stump throne? Or is it out of sight to Morn at this point?)

((Out of sight to Morn at the moment perhaps, but its north and a bit east of the throne stump, but of it can be seen in the most recent non-battleship map.))

Morn gives a low call to the others, "The king is heading north. I've got him tracked at the moment and am going to push up a bit for Frankie." Morn will move as far north-east that he can (I'm guessing half movement with the water).

From this point, if he doesn't see any newly discovered guards, then he will cast frostbite at the frog king (Because Morn knows his location for the spell's duration, would that count as seeing the target as well? If you think not, I'm happy for your judgement on a target for his spell.)

Frostbite - Wisdom Save DC 13, or 1 cold damage and disadvantage on his next attack.