The President's Shadow — James Patterson; Richard DiLallo

The Shadow's last adventure…is also his, Maddy's, and Margo's most dangerous.  
 
For over 150 years, Lamont Cranston has possessed an array of mental and physical powers. As the Shadow, Cranston -- a New York society-man-turned-crusader -- uses his next-generation scientific skills, shape-shifting, and mind control in pursuit of justice.
When a series of deadly natural disasters strike the planet, the Shadow immediately sets out to identify the human threat… 
A disgruntled graduate student? 
The power-hungry President of the Americas? 
Or could it be Shiwan Khan, the Shadow's fiercest enemy?
Standing with the Shadow and his crime-fighting associates are his lasting love, Margo Lane, and his great-great granddaughter, Maddy Gomes.   
Triumph or perish, they'll rise or fall…together.