Phandelver and Below: The Shattered Obelisk

...but cannot.

Everyone may act.

Nightblade:

Seeing the last cultist taking cover in the room beyond, Nightblade calls down holy fire that fills the space occupied by the enemy!

Sacred Flame (upgraded):  DC 15 Dexterity to Negate:  15 radiant Damage (ignores cover).

(Edited to force roll)

Boona continues carrying the old man all the way to his sons.

Since it's too dark for her to see in the next room, Bryony follows Boona to make sure Ontharyx doesn't try to escape again.

Nightblade chases the last cultist into the pillared Procession Hall, where his keen darkvision spots the mutated figure at the far end of the room, peering out of a pair of partially-open doors leading south into another chamber. The mildly-wounded cultist tries to dodge Nightblade's holy flames. DC15 DEX Save: 18

Boona carries the paralyzed, manacled, bound old figure of Ontharyx all the way into the old Librarian's Room, where the drow brothers begin to speak with him in a language Boona cannot understand. "Can he talk?" one of them finally asks Boona in Common upon noticing their father's paralyzed condition.

Bryony races to keep up with Boona. She makes it as far as the hallway door.

Quinn, Jorzu, and Jurgen may act!

Boona shrugged.

Jorzu 

Jorzu follows along behind Boona. When questioned whether Ontharyx can talk Jorzu responds with; "I can't release just his head, it's all or nothing." He directs his next sentence at Boona. "Make sure you hold him tight. Yes, tight but not enough to suffocate the poor man" and with that he drops concentration on his spell.

Boona nods.

Jorzu drops his spell. Ontharyx immediately begins speaking to his sons with a hard tone, in a language none of you understand. He is still held by Boona, manacled, and bound with vines (up to a minute, with Boona's concentration.)

Nightblade watches as the mutate cultist disappears through the double doors leading south from the Procession Hall.

Everyone may act!

Nightblade:

”The last one got away—I expect we will have company soon,” warns Nightblade to his companions behind him.  Rather than go further into the room, he casts a Dancing Lights spell and causes the four globes to appear behind the columns with the hope that any enemies coming from the room beyond might be fooled into thinking there are enemies with light sources taking cover behind the columns.

”We should regroup and prepare to be attacked,” he suggests.  He then takes cover behind a fifth column with his moon touched sword out to add to the deception.