I really enjoyed the Playground by CS Boyack! https://www.amazon.co.uk/gp/aw/d/B01D6EF6RI/ref=pd_aw_sim_351_2?ie=UTF8&dpID=51W2jU0RinL&dpSrc=sims&preST=_UX300_PJku-sticker-v3%2CTopRight%2C0%2C-44_OU02_AC_UL100_SR100%2C100_&refRID=H2WQ065X34ZCJ7RAJRRR i found the Host a pleasent suprise! however i could only give it three stars because i could guess the end!
https://findbooksinside.wordpress.com/2016/06/05/review-of-the-playground/