Before Jabba can answer, an explosion is heard, coming from outside. The escort skiff is in flames, hit by a blast from... Jabba's own cannon?
"Who fired the cannon?". Jabba shouts in Huttese, "Get topside and find out."
As Jabba's guards scramble to get to the main deck, the cannon fires again, hitting the skiff with the prisoners.
"No!", Leia screams, before the skiff explodes.
After a minute, a prisoner is brought down. Arica, one of Jabba's dancers. Jabba speaks angrily in Huttese, and Threepio translates. "The tempestuous Jabba demands to know why you, a lowly slave dancer, ruined the entertainment."
Arica scoffs. "I am not who you think I am," she says, "I am Mara Jade, The Emperor's hand. I have followed his orders to kill Luke Skywalker. Getting rid of Solo and the wookiee was just collateral damage."
Jabba barks an order. "Nonetheless," Threepio translates, "for ruining the planned festivities and destroying two of the thrifty Jabba's skiffs, you will be fed to the Sarlaac in their place, unless you wish to pleasure the entire rank of Gammorean guards."