Universal Orlando's Halloween Horror Nights is leaving bone-chilling voicemails on media member cellphones, Inside the Magic reports.

Each 30-second call is has moans, groans and ends with a girl's whisper that says more details can be expected soon.

Universal released a full line-up report of what spectators can expect for Halloween Horror Nights, which begins Sept. 21 for 25 nights- Sept. 21-22 and 27-30, Oct. 4-7, 11-14, 17-21, 24-28 and Oct. 31.

According to a Universal release, guests will fight for survival from the flesh-eating walkers AMC's "The Walking Dead," run from demons of "Silent Hill," try to escape from Penn & Teller's Las Vegas wasteland and experience Alice Cooper's twisted concepts from his popular songs.

There will also be a new street experience with with a completely reinvented street experience, scarecators will seek them out no matter where they turn.

To watch a video featuring this year’s all-new haunted houses, click here.

To listen to the calls and read more, go to Inside the Magic's website.

For ticket information, visit Halloweenhorrornights.com/orlando.