Lola Sanchez became a Confederate spy after her father was falsely accused of being a spy. She lived at her fathers home on the Saint John's River across from the Union controlled town of Palatka. This allowed her to gather information very effectively. When she heard the plan to attack the Confederates, she traveled to warn Dickison by herself.
Once Dickison got the news he proceeded to rally his men and crossed the river to set a trap. Early on May 22nd, the USS Columbine began to make its way up the river. That's when Dickison's soldiers opened fire on the warboat which disabled it. Once the boat eventually floated to the shore, all remaining Union soldiers were captured. Once all the supplies were taken off the ship, it was burned to prevent it from being taken back.