Old Penny bites Krusty (rolled 39-5=34) for 19+5-15=9 points of damage. In the process, Old Penny takes 3 points of fire plus 4 points of unholy damage. Does Old Penny want to continue with the full attack?
Krusty has 131 HP remaining, and Old Penny has 124 HP remaining.
Evilhalfling[sblock]Old Penny remembers that every time she will strike Krusty, she will take damage. I wrote what she knows about Krusty in an earlier spoiler block.[/sblock]