Sense Motives!
1d20 + 7 ⇒ (9) + 7 = 16
1d20 + 6 ⇒ (17) + 6 = 23
1d20 + 5 ⇒ (18) + 5 = 23
Getting down to business as you start working out how to deal with the letter, your injured teams and considerations towards a larger, more easily defended hideout, Merelda, Castor, and Litsy get to work narrowing down the suspects of the letter sender.
Merelda's intentions are pretty clear from the outset and between this, a lack of desire to get too rough just yet, a lack of knowledge about the group, and a splitting of duties between quietly gaining support for the Ravens and trying to weed out the mole she doesn't luck out in finding anyone particularly suspicious.
Litsy and Castor however do run into some luck. One of the mercenaries, a one Morghar Manthai seems to stand out from the rest. While with his brethren he's just as loud, surly, and dangerous. But when things quiet down or he's alone on some assignment or another he acts differently. Castor has caught him on more than one occasion squatted over large rathole discovered when Reed was killed. Each time he simply stares for a moment too long down the hole before stiffly getting back up and getting on with business. In Litsy's case when she asks about places he's seen in the city things don't quite add up. For example when he talks about getting close to the castle just so he could get a feel for the task ahead of him he didn't seem able to recall any of the buildings or streets and especially notable landmarks between. When pressed on this he seems confused and plays it off as simply bad memory or just being lost in his own thoughts and missing the streets for the destination.
At the insistence of Rexus, he suggests to the sisters that they should investigate a few of the burned buildings from the night of ashes. They return indicating three of the buildings may be of interest to the group if they choose to go.
As for the city, Barzillai has revealed what the dogs were for. As, believe it or not, public executions are not the norm. Thrune prefers quite public and effective humiliations and tortures in often creative and painful ways. This new form of torment is called doghousing.
The victim is placed inside a wooden doghouse with various nails driven through. The result is they can't properly sit or lie down and are in constant danger of being painfully stabbed by a sharp nail. Twice a day they are allowed out of the doghouse to eat. That is if they can get it from the two large chained dogs where the doghouse is just out of reach of. If they wait, the dogs will just eat all the food. If they try to get the food, they'll be lucky not to come away without a few bites for their trouble. To date no one has officially been "doghoused" but it seems the Chelaxian Citizens Group has decided to make use of this new form of torment for themselves.
In this case, one of the tengu sisters was doing a rare thing and simply purchasing some food for themselves when a group of the armbanded thugs cornered them, accused them of stealing and doghoused her themselves. The other two sisters are beside themselves with anger and fear and while they are usually very professional and quiet in such matters it may very well get out of hand if they decide to take care of the problem themselves.