The mouther gets hit several times (just pyrtary bolt missed) but still uses his energy to eat the mantis warrior. The mouther seems to ignore all else, possibly because he is blind.
Spoiler
grapple checks VS kirg.
if he loses any one, he takes (1d4)[4] con damage. he can't take more then 1d4 con damage/round
(1d20+19)[29]
(1d20+19)[37]
(1d20+19)[32]
(1d20+19)[38]
(1d20+19)[33]
(1d20+19)[24]
---------your turn!------
EDIT: scorpion is on J-5