SCHRÖDINGER’S GLASS TIKTOK GIVEAWAY — OFFICIAL RULES

The giveaway is open to legal residents of the contiguous United States and the District of Columbia who are 18 years of age or older at the time of entry. Void where prohibited.

To receive one eligible entry:

1. Like the official Schrödinger’s Glass giveaway post on TikTok.
2. Comment on the post with your favorite Schrödinger’s Glass video from the campaign.

Limit one entry per TikTok account. Multiple comments will not provide additional entries.

No purchase necessary to enter or win. 

The giveaway begins when the official giveaway post is published on August 14, 2026, and ends at 8:00 a.m. Central Time on August 21, 2026. Entries submitted after the deadline will not be eligible.

Ten winners will each receive one signed paperback copy of Schrödinger’s Glass by Chris Grall.

The approximate retail value of each prize is $21.99. The total approximate retail value of all ten prizes is $219.90. Standard shipping within the eligible geographic area will be provided at no cost to the winners.

Prizes may not be transferred, exchanged, or redeemed for cash.

After the giveaway closes, ten potential winners will be selected at random from all eligible entries.

The odds of winning depend on the total number of eligible entries received. Each eligible person may win no more than one prize.

Potential winners will be contacted by private message from Chris Grall’s official TikTok account, @dtn8or_booktok. If TikTok’s privacy settings prevent a private message, Chris Grall may reply to the potential winner’s comment with instructions to contact the official account.

Each potential winner will have seven calendar days from the time notification is sent or posted to respond and provide a name and valid shipping address.

If a potential winner does not respond within seven calendar days, is found to be ineligible, or cannot accept the prize, that person will forfeit the prize and an alternate potential winner may be selected at random.

Personal information supplied by a winner will be used only to verify eligibility and deliver the prize, except where disclosure is required by law.

Potential winners will only be contacted by Chris Grall’s official TikTok account: @dtn8or_booktok.

No winner will ever be asked to pay a fee, provide credit-card information, purchase anything, or supply banking information to claim a prize. Please disregard and report messages from impersonators or unauthorized accounts.

Entries that are fraudulent, automated, incomplete, or otherwise fail to comply with these Official Rules may be disqualified. Chris Grall reserves the right to cancel, suspend, or modify the giveaway if fraud, technical failure, or another circumstance beyond his reasonable control prevents the giveaway from being conducted fairly.

By entering, participants agree to comply with these Official Rules and accept the results of the random drawing as final.

This giveaway is sponsored and administered solely by Chris Grall. It is not sponsored, endorsed, administered by, or associated with TikTok. By entering, participants release TikTok from any responsibility or liability related to this giveaway.