Checking over Sir Balin, he had a longsword, a dagger, masterwork full plate, a heavy steel shield, and a silver-and-sapphire holy symbol of Mitra. Imogen and Leonidas figure that the very attractive holy symbol must be worth about 250 gp.

Ved also detects two magical items on Sir Balin ... a potion vial and a waist wrap. Ved can't even get a school of magic from the potion vial. The multi-ridged waist wrap, however, carries a faint aura of transmutation. Knowing that, Ved and Imogen figure that this is an aquatic cummerbund, a waist-wrap that features a number of dancing dolphins embroidered on the deep blue material.
Spoiler: Ved, Imogen
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The cummerbund grants its wearer a +4 competence bonus on Swim checks, and allows her to take 10 on such checks even if distracted or endangered.


The room itself is checked, and other than the normal fixed lantern light above and a small cell for the prisoner ... basic cot, stool, waste bucket, etc. .... there are no secret doors, or strange things of note in here.