Nang shares his blindsight with his brother so there's no concealment. Unfortunately the bolt just knicks one of its legs, not causing enough damage to kill it.
By look and smell, the Orc has been dead for 3 or 4 days. Betimi notices many tiny bite holes around the edges of the Orc's armor where something small has been chewing at the flesh of his arm and side of his face, exposing the bones and teeth underneath. Betimi pushes the big Orc over onto his back. There's many small stab wounds in his chest, slashes across his arms and a particularly nasty gaping wound on the side of his neck. There's also multiple, similar in size, circular bruises in flesh and dents in his armor, likely from some spell. The others all have similar wounds. Selina is very sure they slaughtered each other and then the critters flew down to feast on the remains. But fresh is always best. So they attacked Ning when the opportunity presented itself.
By look and smell, the Orc has been dead for 3 or 4 days. Betimi notices many tiny bite holes around the edges of the Orc's armor where something small has been chewing at the flesh of his arm and side of his face, exposing the bones and teeth underneath. Betimi pushes the big Orc over onto his back. There's many small stab wounds in his chest, slashes across his arms and a particularly nasty gaping wound on the side of his neck. There's also multiple, similar in size, circular bruises in flesh and dents in his armor, likely from some spell. The others all have similar wounds. Selina is very sure they slaughtered each other and then the critters flew down to feast on the remains. But fresh is always best. So they attacked Ning when the opportunity presented itself.