Collin Gosselin Announces Tell-All Memoir on Abuse

Collin Gosselin will not hold back in his new tell-all memoir.

The former Jon & Kate Plus 8 star, 22, announced his forthcoming book this week, in which he will detail 'the reality of his childhood.'

'In the Shadow of Eight is available now for preorder,' he announced to his 80,000 Instagram followers on Wednesday. 

He teased about the book, which is due out on October 13, 'This isn’t the story people think they know. It’s the story I’ve lived.'

And he promised to cover the 'abuse, injustice, and the exploitation of children.' 

Collin also slighted his mom, 51-year-old , as he praised his dad 's ex-girlfriend Colleen Conrad and called her his 'real mom' in a separate post.

Kate and her ex-husband Jon, 49 – who split in 2009 –

Jon & Kate Plus 8 aired for five seasons on TLC spanning 2007-2017, once amassing 9.8M viewers with the fifth season premiere.

Collin said he wasn't always sure he was going to publicly speak his truth.