Nicole pressed a few buttons on the main console.
A row of gates on the drainage pipes facing the cliff behind the castle slowly rose, releasing a large swarm of mutated vampire bats. After emerging, the bats circled outside the cliff for a while, then divided into dozens of squads, each led by a noticeably larger bat.
Dozens of bat squads flew off in all directions, quickly disappearing into the vast forest, with the leading bats' eyes flickering with a faint red glow.
At the same time, on the large screen in the castle's underground laboratory, several forest images appeared, seemingly captured by flying 'monitors', constantly moving.
However, the clarity of the images was very poor, and the 'signal' was intermittent.
