Congratulations, you made it to the tandem read! For those not in the know, the next two books in the ToG series, Empire of Storms and Tower of Dawn, take place on the same timeline and can therefore be read in tandem.
So, should you do the tandem read? Yes, I can’t recommend it enough. While Tower of Dawn is a fantastic book on its own, the pace and onslaught of new information and characters might make it hard to get through after reading the heart-wrenching cliff-hanger from Empire of Storms. Reading both books at the same time keeps the pace up, helps draw essential connections between the two plots, and is just pure bookish fun.
There are tons of guides on Google for how to split the chapters, but I’ll link one below that can be used to mark off as you go. I used sticky green and red Post-it tabs to organize the tandem read on my paperback editions.