The hungry ghoul probably found Abel by his smell. With a quick glance, it started charging at him. Abel didn't have to do anything, though. His summoned creatures were already tearing the ghoul into pieces.
When the spiritual guardian knight withdrew its lance from the now dead ghoul, it slashed towards the third barrel. As soon as it did, Abel began to hear the sound of an item dropping on the floor. It was making a crisp sound, which meant that it must be very small.
Abel quickly jumped down from Black Wind's back. He started crouching to search for where the item was. Once he found it, he discovered that it was a round object, almost the same color as the floor that it was on. If he didn't hear it drop, he might just take a lot longer to look for it.