Charmed NPC

In the lighthouse, a sirine charmed two of my characters, and i used Algernon´s cloak so they didn´t attack me. Now, charmed has passed (they don´t have the red symbol) but when I go to another map. they become enemies, with the red circle around them but without the dire charmed symbol in theyr protraits. What can I do ?
By the way, does Algernon´s cloak have charges ?

Thanks

That's one of the hazards of using charms. At times, they backfire. There is no way of getting them to "like" you, except for charming them yet again. But beware, they will become hostile again when the charm wears off. Suggestion: Reload from last save and do not charm them. Keep moving away from them if they attack while Dire charmed, or cast a Hold Person on them. I as of yet, haven't figured out how to get around this charm backstabbing delima.
I'm sure someone else has figured it out though.

Kohlus--"Fortune favors the bold!!"

Against Charm and Dire Charm I use to cast dispel magic.
My mage has memorized a couple of these, and none of my
characters has been successfully charmed so far.

I really haven't found out where that info is stored in the game. I guess that if she got killed and resurrected, the dire charm should be gone. Drastic, but it might work.

Thanks everyone, but killing them doesn´t work. Anyway it doesn´t matter now cause I´ve finished the game with this party, charming them with the mighty Algernon´s Cloak (65k charges, great it isn´t).

greetins