Spoiler warning for Dawnshard and previous Stormlight Archive books (Way of Kings, Words of Radiance, Edgedancer, & Oathbringer).

I'd seen mentions of the sleepless and Dawnshards when browsing the Arcanum and so was primarily hoping to learn more about these in this book. But in a short period of time I was surprised with how attached I grew to Rysn! In particular at the end of the book when the captain appreciates Rysn's role as Rebsk and allow here to steer the ship (showing their trust) for a few minutes, I let out an audible cheer. (Also when I noticed that she gained perfect pitch and perfect color recognition) Rysn and Vstim's interludes in the previous stormlight books were some of my favourite interludes and I'm so glad that we got to see more of them here.

The other thing I was surprised by was the set up for the two Winderunners swearing their third ideal here. Lopen says quite clearly that the third ideal is saying that you will protect even those you hate. And then a few chapters later we see Huio swear the third ideal in order to protect Lopen. I honestly thought this was just going to be played off as a joke since they have a fair bit of banter early in the book. But I was heart warmed to see that realisation that Lopen has that his jokes and teasing hurt people, and him swearing his own version of the ideal to protect other people from himself. It reminded me of some of the similar (but not same) character development moments we get with Wayne in Mistborn.

I'd love to hear what other people who read this book thought about it as well. Once I can get my hands on Yumi and the Nightmare Painter in paperback form, I hope to discuss that too with all you Cosmerenauts!

• ‘Taking a leaf out of Trumpism’: Yumi Stynes on the ‘misguided’ backlash to sex book

The book has been criticised by campaigners including Rachael Wong, the chief executive of Women’s Forum Australia, an organisation critical of pro-trans activism. Speaking to 2GB’s Ben Fordham on Tuesday, Wong called it a “graphic sex guide for children”, adding that she felt “physically ill at the thought of children reading it”. Other conservative media figures have amplified the criticism.

“This book was a response to genuine questions asked by adolescents to [magazine column] ‘Dolly Doctor’ for more than 20 years. [Dr Melissa Kang, one of the co-writers], was exposed to what kids were too ashamed to ask anyone else.”

• Big W has withdrawn Welcome to Sex from its stores to protect staff – but teen sex education can keep young people safe

Critics have taken particular issue with small sections of the book that address inclusive sexual practices beyond penetrative sex, including “fingering”, “oral sex”, “scissoring”, and “anal sex”.

They are also critical of the inclusion of what they term “gender ideology”. Others are accusing the authors of “grooming” children – a term that is increasingly misused.

• 'I make no apologies': Yumi Stynes responds to Welcome to Sex critics

The backlash has been so intense Big W stopped selling the book in-store after staff members were abused, although the retailer has defended it and it remains available online.

"I've seen people saying to me 'I want to kill you' or 'You should die'," Stynes told SBS News.