The Phantom Tower

Colm and Mal are twins so identical their own mom can't tell them apart, but they're different in just about every other way. Mal's a pragmatist while Colm's a dreamer, and they bicker and battle constantly. Neither brother is excited to be moving to Chicago for a fresh start with their mom just after their dad's death. But nothing cures homesickness like intrigue--and their new home, Brunhild Tower, has plenty of it: mysterious elderly neighbors who warn against wandering the building at midday, strange sounds in the walls, and an elevator missing a button for the thirteenth floor.