As it happened, I'm guessing this is pretty standard. My question is this: what's my river line if I don't spike the ace?

POKERSTARS GAME #5109215259: HOLD'EM NO LIMIT ($0.25/$0.50) - 2006/05/31 - 13:30:03 (ET)
Table 'Castor II' 9-max Seat #2 is the button
Seat 1: Bozy_Royal ($3.25 in chips)
Seat 2: JosephCao ($46.05 in chips)
Seat 3: Rockymv ($49.50 in chips)
Seat 4: francishill ($19.85 in chips)
Seat 5: Badhally ($67.70 in chips)
Seat 6: sigurrostyp ($56.35 in chips)
Seat 7: NutNoPairs ($9.75 in chips)
Seat 8: RACHID21 ($42.70 in chips)
Seat 9: choial ($49.50 in chips)
Rockymv: posts small blind $0.25
francishill: posts big blind $0.50
*** HOLE CARDS ***
Dealt to Rockymv [Ah Ad]
Badhally: calls $0.50
sigurrostyp: folds
NutNoPairs: folds
RACHID21: calls $0.50
choial: folds
Bozy_Royal: folds
JosephCao: folds
Rockymv: raises $2 to $2.50
francishill: folds
Badhally: calls $2
RACHID21: calls $2
*** FLOP *** [2h Th 7c]
Rockymv: bets $6.50
Badhally: folds
RACHID21: calls $6.50
*** TURN *** [2h Th 7c] [Kc]
Rockymv: bets $17
RACHID21: calls $17
*** RIVER *** [2h Th 7c Kc] [Ac]
Rockymv: bets $23.50 and is all-in