Prince Of Caviar unsuccessfully returned from an extended layoff on Wednesday, finishing second in a five-horse field over 1100 metres at Bendigo.
The second foal out of the unbeaten champion Black Caviar hadn't raced since September 2018 when starting odds-on favourite to win his Benchmark 70 handicap.
Prince Of Caviar ($1.60 favourite) settled in the box seat under Luke Nolen and briefly loomed as the winner early in the straight. However, the Hawkes Racing-trained son of Sebring was no match for the Daniel Bowman-trained Mumbles ($3), who swept over the top from last to start his campaign with a 1.75-length victory.
"We were pretty confident, he's got a pretty good fresh record," Bowman said.
"He was unlucky not to win at Caulfield first-up last prep, we probably got it wrong galloping him a fortnight before (race day) instead of trailing him and he hit the front 100 metres out and then peaked on his run.
"That form has held up through Morrissy and Poised To Strike so I was confident if we got the right run he could get over the top."
Prince Of Caviar has raced five times for one win and three seconds, with two of his other defeats handed him to by future Stakes winners Mickey Blue Eyes (2018 Listed Dulcify Quality) and Extra Brut (2018 G1 Victoria Derby).
Budget Car and Truck Rental BM70 Handicap (1100m)