The Khwaja Malak plays a different gamble, and he fishhooks along the NW to halt the gnoll's progress.
Spoiler
Show
2xMA: KM moves around to end up one square NW of the gnoll, which will provide flanking for ...
Even as the javelin flies in, the Water Prince skips behind the priestess to stab her as Khwaja Malak confronts her.
Spoiler
Show
FA: 5' step NW, now adjacent to priestess.
SA: He is now w/in K-M's aura. CE. Attack (flanking incl.) (1d20+9)[22], damage (1d6+3)[5] + sneak attack (4d6)[17]
W/ CE, AC = 24 (t 16, f 21)